Slideshow Gallery

The red object is known as a "hat," which shields PACE's Earth coverage antenna and prevents emission of radiation during testing. Credit: Henry, Dennis (Denny)

Transporting HARP2 polarimter to thermal vacuum chamber. Credit: Mellos, Katherine

HARP2 polarimeter installed in chamber for pre-thermal testing. Credit: Mellos, Katherine

Preparing HARP2 polarimeter for thermal vaccum testing. Credit: Mellos, Katherine

Installating HARP2 polarimeter on thermal vacuum plate. Credit: Henry, Dennis (Denny)

The Ocean Color Instrument team evaluates the instrument configuration in the Thermal Vacuum Chamber (TVAC) prior to closing the chamber door for testing. Credit: Mellos, Katherine

The Ocean Color Instrument team pushes the instrument into the Thermal Vacuum Chamber (TVAC) for environmental testing. Credit: Stover, Desiree

The flight Ocean Color Instrument is installed in the Thermal Vacuum Chamber (TVAC) for environmental testing. Credit: Mellos, Katherine

The Ocean Color Instrument is installed in the Thermal Vacuum (TVAC) chamber and prepared for thermal testing. Credit: Mellos, Katherine

Mechanical technicians crane lift the Ocean Color Instrument on to the Thermal Vacuum Chamber (TVAC) cart. Credit: Stover, Desiree

Quality engineer Luiz Mendez observes mechanical technician Tyere Garner remove bolts before lifting the Ocean Color Instrument from Tilt Mechanism to its ground support fixture. Credit: Henry, Dennis (Denny)

Mechanical technicians crane lift the Ocean Color Instrument from the Multi-purpose Ground Support Equipment (GSE) fixture. Credit: Henry, Dennis (Denny)

Mechanical engineer, Eduardo Rodriguez, and Mechanical Technician, Joe Eddy, prepare the vertical lift sling to crane lift the Ocean Color Instrument. Credit: Henry, Dennis (Denny)

Ocean Color Instrument Team poses with the flight instrument behind them in a cleanroom tent on August 4, 2022. Credit: Stover, Desiree

Eric Gorman & Robby Estep pose with the instrument and integrated earth shade and Tilt fixture in the acoustic chamber. Credit: Stover, Desiree

Ocean Color Instrument managers (Brian Clemons, Eric Gorman, Ulrik Gliese, Leland Chemerys, Joe Knuble, Robby Estep) pose with the instrument in the acoustic chamber. Credit: Stover, Desiree

The Earth Shade (ES) radiators on the Ocean Color Instrument are displayed as it is tested in a cleanroom at Goddard Space Flight Center. Credit: Stover, Desiree

Technician Nathan Allen connects the purge line to the Ocean Color Instrument in preparation for X-Axis (vertical) vibration testing. Credit: Stover, Desiree

Ocean Color Instrument mechanical team poses with the bagged instrument behind them after a successful environmental testing campaign. Credit: Stover, Desiree

Mechanical technicians transport the Ocean Color Instrument through the integration and testing complex to X-Axis (vertical) vibration chamber. Credit: Mellos, Katherine

The Ocean Color Instrument mechanical team stands on the balcony overlooking the bagged instrument after successfully installing it onto the X axis (vertical) vibration shaker table. Credit: Stover, Desiree

The Ocean Color Instrument mechanical team poses with the bagged instrument after successfully installing it onto the X-Axis (vertical) vibration shaker table. Credit: Mellos, Katherine

Thermal vacuum test of Ka-band Earth coverage antenna. Credit: Henry, Dennis (Denny)

Thermal vacuum test of Ka-band Earth coverage antenna. Credit: Henry, Dennis (Denny)

The Ocean Color Instrument is crane lifted onto the Y-axis vibration table. Credit: Mellos, Katherine

The GSFC environmental testing team poses with the bagged Ocean Color Instrument in the acoustic chamber prior to testing. Credit: Stover, Desiree

Mechanical technicians crane lift the Ocean Color Instrument with Earth Shade onto the Flight Tilt Mechanism. Credit: Stover, Desiree

The Ocean Color Instrument integrated onto the Flight Tilt Mechanism with the Earth Shade. Credit: Stover, Desiree

The Ocean Color Instrument is prepared for environmental testing with installed thermal blankets, protective contamination covers, and flight Earth Shade (ES). Credit: Stover, Desiree

The Ocean Color Instrument (OCI) is prepared for environmental testing with installed thermal blankets and flight Earth Shade in a cleanroom at Goddard Space Flight Center. Credit: Stover, Desiree

The Ocean Color Instrument (OCI) team poses with OCI and its integrated Earth Shade in June 2022 at Goddard Space Flight Center. Credit: Stover, Desiree

Radiofrequency testing setup after spacecraft vibration test. Credit: Henry, Dennis (Denny)

Setting up for radiofrequency testing. Credit: Henry, Dennis (Denny)

The Ocean Color Instrument Electro-Magnetic Interference (EMI) & Electrical Ground Support Equipment (EGSE) Team pose in the control room at at Goddard Space Flight Center. Credit: Mellos, Katherine

The Ocean Color Instrument Electro-Magnetic Interference (EMI) Team pose in the EMI cleanroom at Goddard Space Flight Center. Credit: Mellos, Katherine

The Ocean Color Instrument is prepared for testing in the Electro-Magnetic Interference (EMI) chamber showing the Rotating Telescope side of the instrument. Credit: Mellos, Katherine

The Ocean Color Instrument is prepared for testing in the Electro-Magnetic Interference (EMI) chamber. Credit: Mellos, Katherine

PACE Control room. Credit: Henry, Dennis (Denny)

PACE Control room. Credit: Henry, Dennis (Denny)

The Ocean Color Instrument Earth Shade (ES) is removed from a thermal chamber after successful testing. Credit: Mellos, Katherine

The GSFC Trax team lifts the Ocean Color Instrument on a forklift into a truck to transport to the integration and testing facility for envirnomental testing. Credit: Stover, Desiree

Lifting Structural Verification Unit out of chamber for the Sine Vibration Test. Credit: Henry, Dennis (Denny)

Installing Low Gain Antenna on PACE Spacecraft bus. Credit: Henry, Dennis (Denny)

Systems engineer, Joseph Knuble, adjusts the intensity of the studio lamp during the Ocean Color Instrument stray light testing. Credit: Stover, Desiree

Systems engineer, Joseph Knuble, adjusts the intensity of the studio lamp during the Ocean Color Instrument stray light testing. Credit: Stover, Desiree

Aligning the solar arrays and Structural Verification Unit to perform electrical tests. Credit: Lambert, Barbara

Lifting PACE Structural Verification Unit onto Aronson Table for engineering tests. Credit: Lambert, Barbara

Mechanical technician, Thomas Huber, integrates the Short Wave Infrared (SWIR) Pulse Calibration Assembly (SPCA) fold mirror assembly to the Ocean Color Instrument. Credit: Mellos, Katherine

Manufacturing engineer, Roman Nilov, supervises the integration of the Short Wave Infrared (SWIR) Pulse Calibration Assembly (SPCA) fold mirror assembly to the Ocean Color Instrument. Credit: Mellos, Katherine

Opened -Y Panel. Credit: Henry, Dennis (Denny)

Installing bus Star Tracker Sensor on the PACE -Z Panel. Credit: Henry, Dennis (Denny)

Installing the bus Star Tracker Sensor on the -Z Panel. Credit: Lambert, Barbara

Installing Star Tracker Sensor on the -Z Panel. Credit: Henry, Dennis (Denny)

Inspecting the PACE Star Tracker Sensor. Credit: Lambert, Barbara

Inspecting Ocean Color Instrument Star Tracker command and data handling unit. Credit: Henry, Dennis (Denny)

The Flight Ocean Color Instrument is installed onto the Ground Support Equipment Application for Tilt or Rotation (GAToR) Credit: Stover, Desiree

Inspection and electrical testing of PACE Flight Solar Array Panels. Credit: Henry, Dennis (Denny)

Alignment team working on the PACE spacecraft. Credit: Henry, Dennis (Denny)

Alignment team working on the PACE spacecraft. Credit: Henry, Dennis (Denny)

Testing solar array drive assembly on PACE spacecraft bus. Credit: Henry, Dennis (Denny)

Installing the solar array drive assembly on the PACE spacecraft bus. Credit: Lambert, Barbara

Overall photos of spacecraft after solar array drive assembly install. Credit: Lambert, Barbara

PACE spacecraft team checking alignment data. Credit: Henry, Dennis (Denny)

PACE engineering test unit for solar array drive assembly wing setup. Credit: Henry, Dennis (Denny)

PACE engineering test unit for solar array drive assembly walkouts on the gantry. Credit: Henry, Dennis (Denny)

Tightening bolts on the PACE engineering test unit solar array drive assemblies wing setup. Credit: Lambert, Barbara

Measuring PACE engineering test unit solar array drive assemblies wing setup. Credit: Lambert, Barbara

Carlos Duran-Aviles with the PACE reaction wheel assembly. Credit: Lambert, Barbara

Mechanical Technicians Daniel Dizon and Joseph Eddy transport the Ocean Color Instrument Earth Shade into the thermal vacuum chamber. Credit: Mellos, Katherine

Mechanical Technicians Daniel Dizon and Joseph Eddy install the Ocean Color Instrument Earth Shade into the thermal vacuum chamber. Credit: Mellos, Katherine

Mechanical technician Joseph Eddy and mechcanical engineer Peter Steigner install the Ocean Color Instrument Radiator Support Structure (RSS) struts to the Instrument Deck Structure (IDS). Credit: Stover, Desiree

Mechanical Technician, John Poulsen, installs flight hardware during the Ocean Color Instrument post Optical Module (OM) integration to the Flight Instrument Deck Structure (IDS). Credit: Mellos, Katherine

The Optical Module (OM) and the Flight Instrument Deck Structure (IDS) are integrated together, creating the Flight Ocean Color Instrument. Credit: Stover, Desiree

Mechanical Engineer Paul Dizon and Mechanical Technician Daniel Dizon with the Ocean Color Instrument. Credit: Stover, Desiree

Performing component functional testing on the PACE spacecraft. Credit: Lambert, Barbara

Members of PACE spacecraft integration and test team. Credit: Lambert, Barbara

Open panel (-Y) on spacecraft bus. Blue electronics boxes are for power system and attitude control electronics. Credit: Lambert, Barbara

Installing qual battery on flight spacecraft bus. Credit: Henry, Dennis (Denny)

Mechanical technician Andrew Scharmann aligns the Ocean Color Instrument Focal Plane Assemblies (FPAs). Credit: Stover, Desiree

Panel (-Y) being installed on the spacecraft structure. Credit: Henry, Dennis (Denny)

Panel (-Y) being installed on the spacecraft structure. Credit: Henry, Dennis (Denny)

PACE spacecraft bus structure. Credit: Henry, Dennis (Denny)

Assembling PACE spacecraft bus structure. Credit: Henry, Dennis (Denny)

Panel (+Y) installed on the PACE spacecraft bus. Credit: Henry, Dennis (Denny)

Installing panel (+Y) on the PACE spacecraft bus. Credit: Henry, Dennis (Denny)

Assembling PACE spacecraft bus structure. Propulsion tank is in the middle. Credit: Henry, Dennis (Denny)

View inside the PACE spacecraft bus structure. Credit: Henry, Dennis (Denny)

Installing the top of the PACE spacecraft bus structure. Credit: Henry, Dennis (Denny)

Checking the top of the PACE spacecraft bus structure. Credit: Henry, Dennis (Denny)

Installing of panel (-Z) onto the PACE propulsion module deck. Credit: Henry, Dennis (Denny)

Panel (-Z) installed on the PACE propulsion module deck. Credit: Henry, Dennis (Denny)

PACE spacecraft bus structure with -Z panel on propulsion module deck. Credit: Henry, Dennis (Denny)

Assembling PACE spacecraft bus (+Z and -Z panels) using keel lift. Credit: Henry, Dennis (Denny)

Installing the passive ring and propulsion module onto the PACE observatory dolly. Credit: Henry, Dennis (Denny)

Lifting points proof test for spacecraft transport between facilities. Credit: Henry, Dennis (Denny)

Mechanical technician Andrew Scharmann stabilizes harnesses while Daniel Dizon rotates the Ocean Color Instrument Optical Module for additional integration activities as mechanical engineer Michael Mulloney observes. Credit: Stover, Desiree

Paula Cain and Aldine Joseph-Pierre apply thermal blanketing to the Ocean Color Instrument Loop Heat Pipes (LHP) prior to thermal vacuum testing. Credit: Mellos, Katherine

Electrical harnesses are installed and prepped for electronic box integrations on the Ocean Color Instrument's Instrument Deck Structure (IDS). Credit: Mellos, Katherine

PACE assembly for structural testing. Credit: Henry, Dennis (Denny)

Mechanical technician Daniel Dizon stabilizes the Ocean Color Instrument Optical Module after a rotation for additional integration activities as mechanical engineer Michael Mulloney observes. Credit: Mellos, Katherine

Mechanical technicians reorient the Ocean Color Instrument Optical Module on the rotation fixture for additional hardware integration. Credit: Mellos, Katherine

The Ocean Color Instrument Optical Module (OM) at Goddard Space Flight Center. Credit: Stover, Desiree

Members of the Ocean Color Instrument Main Optics Sub Bench (MOSB) integration team pose with the hardware prior to its integration onto the Main Optics Bench (MOB). Credit: Stover, Desiree

Installing torque circular connectors during panel integration. Credit: Henry, Dennis (Denny)

Mechanical technician Joseph Eddy guides the Ocean Color Instrument Main Optics Bench (MOB) to the LISARD turnover fixture overseen by quality engineer George Brooks. Credit: Stover, Desiree

Blanket technicians discuss thermal templates on the Ocean Color Instrument Instrument Deck Structure (IDS) at Goddard Space Flight Center. Credit: Mellos, Katherine

Optical engineer, David Kubalak, inspects the Ocean Color Instrument Main Optics Sub Bench (MOSB) interior optics prior to covers are installed. Credit: Stover, Desiree

Ground system equipment setup for boresight alignment of HARP2 polarimeter. Credit: Henry, Dennis (Denny)

Group photo with HARP2 polarimeter. Credit: Henry, Dennis (Denny)

Reviewing data from the boresight alignment of HARP2 polarimeter. Credit: Henry, Dennis (Denny)

Ground system equipment setup for boresight alignment of HARP2 polarimeter. Credit: Henry, Dennis (Denny)

The Ocean Color Instrument Optical Alignment team poses for a group photo after successful alignment of the flight Main Optics Bench and Rotating Telescope assembly. Credit: Guinto, Michael

Performing electrical integration of engineering test unit's Ka-band transmitter. Credit: Henry, Dennis (Denny)

Electrical integration of engineering's test unit Ka-band transmitter. Credit: Henry, Dennis (Denny)

PACE solar array deployment gantry. Credit: Guinto, Michael

PACE solar array deployment gantry. Credit: Guinto, Michael

Installing tilt and solar array drive electronics to a PACE spacecraft panel (-Y). Credit: Henry, Dennis (Denny)

Installing GPS receiver box to a PACE spacecraft panel (-Z). Credit: Henry, Dennis (Denny)

Installing stimulators on PACE course sun sensors. Credit: Henry, Dennis (Denny)

Performing electrical integration of flight power system electronics and attitude control electronics box. Credit: Henry, Dennis (Denny)

Lift fixture within thermal vacuum chamber. Credit: Seixal, John

Aerospace Engineer, Daniel Senai, inspects the completed Ocean Color Instrument Solar Calibration Assembly (SCA) Life Test Unit mechanism. Credit: Henry, Dennis (Denny)

Installed multilayer insulation thermal blankets on PACE propulsion module. Credit: Lambert, Barbara

Qualification of the spacecraft bus structure strength. Credit: Henry, Dennis (Denny)

Installing the flight propellant tank into the frustum. Credit: Dennis Henry

Assembling the structure, installing the mass simulators and tilt platform/solar array strength test fixtures, and assessing and demonstrating the panel G-Negation system functionality. Credit: Dennis Henry

Inspecting attitude control electronics box telemetry for fluctuations registered during testing. Credit: Henry, Dennis (Denny)

Testing observatory lifting points and pull strength of tilt platform, solar array, SPEXone, HARP2, and bus star tracker interfaces. Credit: Henry, Dennis (Denny)

Lift of PACE spacecraft into the testing modal facility. Credit: Henry, Dennis (Denny)

Spacecraft structure with mass simulators, tilt platform & solar array strength test fixtures. Credit: Henry, Dennis (Denny)

The optical alignment team performs gravity sag measurements on the Ocean Color Instrument Main Optics Sub Bench (MOSB). Credit: Stover, Desiree

Mass simulation assembly structure. Install of tilt platform/solar array strength test fixtures. Credit: Henry, Dennis (Denny)

Optical technician Timothy Hahn measures the Ocean Color Instrument Collimator Slit Bracket on the Coordinate Measurement Machine (CMM). Credit: Stover, Desiree

Technicians mechanically integrate the Shortwave Infrared (SWIR) Detector Assembly into the Ocean Color Instrument Engineering Test Unit. Credit: Stover, Desiree

Thermal integration of PACE propulsion tank.

Inertial reference unit electromagnetic interference testing procedure. Credit: Henry, Dennis (Denny)

Installing the ETU SDA onto the Turnover Dolly.

NASA Technician Andrew Scharmann verifies correct spring deflection to properly preload the depolarizer optic into the Flight Depolarizer Mount Assembly.

ETU SDA Post Delivery Acceptance Testing side view.

ETU SDA Post Delivery Acceptance Testing front view.

ETU SDA in its shipping container for post delivery to Goddard Space Flight Center.

The OCI ETU rolls into the TVAC chamber. Lines are for electrical connections, temperature sensors, accelerometers, and liquid nitrogen, whic is used for cooling down the radiators.

The OCI ETU rolls into the TVAC chamber. Lines are for electrical connections, temperature sensors, accelerometers, and liquid nitrogen, whic is used for cooling down the radiators.

The OCI ETU rolls into the TVAC chamber. Lines are for electrical connections, temperature sensors, accelerometers, and liquid nitrogen, whic is used for cooling down the radiators.

Preparing the OCI ETU and TVAC Cart to enter the TVAC chamber.

Preparing the OCI ETU and TVAC Cart to enter the TVAC chamber.

Lead Mechanical Engineer Mitch Zavala observes OCI ETU integration activities.

Quality Assurance (QA) Engineer Brad Weideman witnesses the OCI ETU hardware installation.

A mechanical engineer reviews integration documentation with the QA Engineer.

NASA engineers prepare for crane lifting of the OCI ETU.

De-integrating the OCI ETU in preparation for lifting to the Thermal Vacuum (TVAC) Cart.

Crane lifting the OCI ETU from the GAToR to the TVAC Cart.

The OCI ETU with the spinning telescope scanning the calibrated light source.

Beauty photo of the ETU OCI installed on the GSE Application for Tilt or Rotation (GAToR).

De-integration of the OCI ETU from the Transport Dolly.

Crane lift of the OCI ETU onto the Calibration and GSE.

Mechanical installation of the Data Acquisition Unit (DAU) electronics box onto the OCI ETU.

Mechanical installation of the DAU electronics box onto the OCI ETU.

Mechanical installation of the DAU electronics box to the mock-up ETU radiator.

MLA and Fiber Bundle linking the OCI OM to the SWIR Detection Assembly (SDA).

The OCI ETU with the OM installed and ready for Integration & Testing (I&T).

The OCI ETU with the OM installed and ready for I&T.

The OCI ETU with the OM installed and ready for I&T.

The OCI ETU with the OM installed and ready for I&T.

NASA technicians perform a flatness check between the OM and ETU Primary Structure.

Flatness check between the OM and ETU Primary Structure.

The fully integrated OM on the OCI ETU.

NASA technicians perform a flatness check between the OM and ETU Primary Structure.

The fully-integrated OM on the ETU.

The OCI ETU OM (with Red-Channel FPA installed) oriented for optical testing.

The OCI ETU OM (with Red-Channel FPA installed) oriented for optical testing.

The OCI ETU MOB attached to the Lisard GSE prior to installation of MOSB.

The OM on Lisard GSE. Lift shackles are installed in preparation for an upcoming crane lift.

Unbolting the OCI ETU OM from the Lisard GSE in preparation for a crane lift move to the Instrument Structure. Protective contamination bagging is installed.

The OM is installed to the OCI ETU Primary Structure.

Crane lift of the ETU OM onto the OCI Primary Structure. (In order to protect the OM from potential particulate contamination and humidity, the OM is bagged and purged.)

Crane lift of the ETU OM onto the OCI Primary Structure.

Crane lift of the ETU OM onto the OCI Primary Structure.

The FPA installed on the ETU OM of the OCI.

Installation of the Focal Plane Assembly (FPA) on the ETU OM of the OCI.

The FPA installed on the ETU OM of the OCI.

Installation of the FPA on the ETU OM of the OCI.

MicroLens Array (MLA) and Fiber Optic Bundle attached to the OCI Optical Module (OM) during alignment and testing.

Alignment of the MLA and Fiber Optic Bundle to the OCI OM. The OM is located in the middle of the optical table.

Joe Thomas and Alejandro Rodriguez Perez perform alignment of the MLA and Fiber Optics Bundle to the OCI OM.

The MOSB installed onto the ETU MOB.

The MOSB installed onto the ETU MOB.

Integration of the populated ETU MOSB onto the ETU MOB.

Integration of the populated ETU MOSB onto the ETU MOB.

The OCI ETU MOB attached to the Lisard GSE prior to installation of the MOSB.

The MOB attached to the Lisard Ground Support Equipment (GSE), prior to installation of the Main Optics Sub-Bench (MOSB).

Ocean Color Instrument (OCI) ETU FlatSat End-to-End Electrical System Test - LTU Electrical Integration.

Andrei Sushkov operating the OLAF-2 Goddard Laser for Absolute Measure of Radiance source bench (green light coming from the primary source class-4 laser).

Ultraviolet Visible Risk Mitigation Unit Dichroic Assembly.

Installation of the ETU HAM mechanism into the Main Optical Bench (MOB) structure.

Installation of the ETU Rotating Telescope mechanism into the main optical bench structure.

Alignment of the HAM mechanism in the MOB structure.

Assembly of the BOLT stack-up frame support structure.

A NASA technician installs an optic reference cube to the HAM mechanism in order to perform alignment measurements.

Installation of an optical cover to prevent any debris from contaminating the HAM mechanism optics.

A NASA technician assembles the Half-Angle Mirror (HAM) mechanism in preparation for balancing activities.

NASA technician, Wes Fincher, installs a temporary vibration sensor to prepare the ETU Rotating Telescope Assembly for dynamic spin evaluation.

Assembly of the BOLT unit stack-up prior to harness routing.

Assembly of the BOLT stack-up.

Setting up the Engineering Test Unit (ETU) for spindle axis characterization in order to measure the true spin axis of the mechanism.

NASA technicians assemble the BOLT unit into the vibration fixture.

Performing BOLT vibration testing. A contamination cover is installed to protect the hardware from debris.

A NASA technician installs the rotor mass simulator to the Bearing Only Life Test (BOLT) unit in preparation for vibration testing.

Thermal Vacuum Chamber (TVAC) testing of SPEXone. Credit: Andre Dress

SPEXone in the thermal vacuum chamber (Leiden, Holland) following thermal vacuum testing. Credit: Andre Dress

A technician prepares the SPEXone flight instrument for vibration testing. Credit: Andre Dress

The SPEXone thermal vacuum test facility in the Netherlands. Credit: Andre Dress

SPEXone unpacked at SRON. Credit: Andre Dress

SPEXone arriving at SRON in its shipping container, post environmental testing. Credit: Andre Dress

SPEXone in its container as it arrives for transport to the SRON Clean Room. Credit: Andre Dress

Diverse plankton from surface waters seen under a microscope. It is so concentrated that you don't need to zoom to identify the species. Credit: Laura Holland/ University of Rhode Island

Scientists on the RRS James Cook deploy a sampling rosette. This type of platform allows for the collection of water samples and other information from ocean depths. The RRS Discovery and R/V Sarmiento de Gamboa can be seen in the distance deploying the same instrumentation. Credit: Deborah Steinberg

Scientists aboard the RRS James Cook prepare a test deployment of sediment traps. Credit: Lee Karp-Boss

Deployment of a Wirewalker from the RRS James Cook. The wirewalker is an autonomous,  rapid, wave-powered profiling system with bio-optical instruments that provides useful insights about phytoplankton physiology and oceanographic conditions. Credit: Deborah Steinberg

Meg Estapa (University of Maine) on the RRS James Cook successfully recovers the first Neutrally Buoyant Sediment Trap (NBST). NBST's open at discrete depths, trapping sinking particles and providing an estimate of how much carbon is exported to the deeper ocean. Credit: Lee Karp-Boss

Scientists on the RRS Discovery and RRS James Cook simultaneously perform a one-of-a-kind maneuver to deploy and test similar equipment. Credit: Joel Llopiz

The Sarmiento de Gamboa docked in Vigo, Spain before the launch of WHOI's Dive and Discover Expedition 17. The R/V Sarmiento de Gamboa will join the RSS James Cook and the RSS Discovery as part of NASA's EXPORTS mission operating in the same location. Credit: Michelle Cusolito

WHOI scientists and crew board the R/V Sarmiento de Gamboa on April 29 after 14 days in quarantine. Credit: Ken Buesseler

The RRS James Cook docks in Southampton, UK before sailing for the EXPORTS North Atlantic field campaign. Credit: Hannah Gossner

Instruments are loaded onto the R/V Sarmiento de Gamboa in preparation for WHOI's Dive and Discover Expedition 17. Credit: Michelle Cusolito

Boat/immersion suit drill onboard the RRS Discovery. Credit: Chelsea Nicole

Collin Roesler and Susan Drapeau deploy the HTSRB - also known as the Hester-B or Hyperspectral Tethered Spectral Radiometer Buoy - which carries a sensor used to measure the optical properties of water. Credit: Taylor Crockford

Left: Scaled chlorophyll-a retrievals for Monterey Bay, as measured by the HawkEye sensor on Seahawk. Center: A true color image of Monetery Bay, captured by HawkEye. Right: Chlorophyll-a data measured by MODIS/Aqua one day earlier. Credit: NASA GSFC

The first SeaHawk image, captured by the HawkEye sensor on March 21, 2019 from an altitude of 588 km, superimposed on a map of California. Credit: NASA GSFC

Scientists and engineers celebrate after the launch of SeaHawk on December 3, 2018. Credit: Gene Feldman (NASA GSFC)

Spaceflight's SpaceX Falcon 9 rocket lifts off from Vandenberg AFB for a sun-synchronous low earth orbit, carrying SeaHawk and 63 other satellites. Credit: SpaceX

The SSO-A Smallsat Express will be the largest single rideshare mission launched from a U.S.-based vehicle. The SSO-A Smallsat Express will carry 49 CubeSats, including SeaHawk, and 15 MicroSats from 34 countries. Credit: Spaceflight Industries

GSFC researchers and engineers await the launch of Sun Industry's Sun-Synchronous Orbit A (SSO-A) SmallSat Express. Credit: NASA GSFC

A SpaceX Falcon 9 First Stage booster successfully completes a static test fire on November 16, 2018. Credit: SpaceX

The mechanical design concept for the HawkEye Ocean Color Sensor. Credit: NASA GSFC

In 1997, scientists and engineers from Goddard Space Flight Center (GSFC) watch the launch of the Sea-Viewing Wide Field-of-View Sensor (SeaWiFs), NASA's revolutionary ocean color mission and the precursor to Hawkeye. Credit: NASA GSFC

SeaHawk mechanical components assembled for fit check testing. Credit: Clyde Space

Overview of SOCON's first spacecraft - the SeaHawk CubeSat satellite. Manufactured by Clyde Space Ltd, the Seahawk CubeSat will carry HawkEye, a high spatial resolution, multispectral, ocean color sensor built by Cloudland Instruments, LLC. Credit: NASA GSFC

SOCON is a partnership for development and proof-of-concept for a low-cost, miniaturized, multispectral ocean color imager capable of flight on an autonomous nanosatellite (CubeSat). Credit: NASA GSFC

Scientist Yuanheng Xion (UND) readies Niskin bottles before a CTD is cast in the Gulf of Alaska. Credit: Abigale Wyatt (Princeton University)

Researchers bring an NBST onto the deck of the R/V Roger Revelle. Credit: NASA

Scientists prepare to recover one of eleven NBSTs deployed during the EXPORTS cruise. Credit: NASA

The tops of NBSTs showing the opening through which marine snow - organic material falling from above - drifts. Credit: David Siegel (UCSB)

Scientists prepare to deploy a Conductivity, Temperature, and Depth (CTD) sensor, which generates a vertical profile of the water column (surface to bottom). Discrete water samples are collected for analysis via a rosette of Niskin bottles. Credit: NASA

At right, Marine Chemist Ken Buesseler (WHOI) deploys a sediment trap from the R/V Roger Revelle. Credit: Alyson Santoro (UCSB)

The Multiple Opening/Closing Net and Environmental Sensing System (MOCNESS) is deployed off the bow of the R/V Roger Revelle. This specialized net, which incorporates many different smaller nets, is towed behind a vessel, and enables the collection of plankton throughout the water column. Credit: NASA

The EXPORTS team deploys a Marine Snow Catcher after several days of rough seas. These instruments sample water from the Twilight Zone - the focus of the cruise - so that scientists can better understand how phytoplankton and zooplankton impact carbon exported to the deep ocean. Credit: NASA

In the hydro lab on board the R/V Revelle, a row of sampling tubes await deployment. Credit: Katy Mersmann (NASA)

Dr. Norm Nelson, Co-chief Scientist of the R/V Sally Ride, gives the media a tour of the vessel prior to departing for the Pacific. Credit: NASA

Ship-based radiometers (seen here attached to a deck rail) will collect hyperspectral data on ocean color. The hyperspectral measurements will be similar to those that will be collected during the PACE mission. Credit: NASA

The boxes shown here are incubators for phytoplankton that will be used to study the response of plankton to different environmental conditions. Credit: NASA

Before heading to the ocean's Twilight Zone, National Science Foundation and EXPORTS scientists build an enclosed, air-tight "bubble" in which to work. Credit: S. Burns (NASA)

Scientists affiliated with the EXPORTS field campaign discuss the upcoming mission. Credit: Michael Starobin (NASA)

A mosaic of plankton lovers: Members of the EXPORTS team are shown on digital trading cards, created by Dr. Kim Martini for a NASA social media event. Credit: Dr. Kim Martini (Sea-Bird Scientific, Deep Sea News)

Participants from a NASA social media event pose by the R/V Sally Ride before it embarks on its August 2018 tour of the North Pacific. Credit: NASA

EXPORTS scientists prepare an IFC for operation on board the R/V Sally Ride. Credit: Michael Starobin (NASA)

Dr. Melissa Omand (URI) assembles a Wirewalker, an autonomous platform used to collect high frequency data. Credit: NASA

Neutrally Buoyant Sediment Traps (NBSTs) are specially designed containers deployed in the water column to collect particles falling toward the sea floor. Credit: NASA

This Sentinel-2A view of Seattle, WA shows the R/V Sally Ride and the R/V Roger Revelle docked at Smith Cove. Credit: NASA

Dr. Emmanuel Boss (UMaine) readies an Underwater Vision Profiler, which will be used by scientists from UMaine and UA Fairbanks to collect water samples during the field campaign. Credit: NASA

Milky blue water in this satellite view of Prince of Wales Island, AK is thought to be caused by a bloom of non-toxic phytoplankton known as coccolithophores. Credit: NASA

During the EXPORTS field campaign, the Imaging Flow Cytobot (IFC) will give scientists a continuous view of plankton diversity in the northeast Pacific. This collage represents just a small number of the plankton that inhabit Earth's ocean. Credit: Heidi Sosik (WHOI)

The first EXPORTS field deployment will be to the northeast Pacific Ocean in late summer 2018. The cruise will utilize two research vessels: The R/V Roger Revelle (top) and the R/V Sally Ride (bottom). Credit: Scripps Institution of Oceanography

This illustration links the ocean biological pump and pelagic food web. Field campaigns such as EXPORTS utilize ships, satellites and autonomous vehicles to sample many parts of this system. Credit: Adapted from Siegel et al., 2016

Understanding the location and characteristics of phytoplankton is key to discovering their role in the ocean ecosystem. The colors on this map represent different types of phytoplankton modeled by a high-resolution ocean and ecosystem model. Credit: The Darwin Project (MIT)

The goal of EXPORTS is to track the fate of ocean carbon and study its implications for Earth's carbon cycle. EXPORTS will use advanced ocean observing tools and satellite observations to build a more complete picture of these complex processes.

Some of the pilots, mechanics, engineers and scientists who participated in the ACEPOL field campaign. Credit: Kirk Knobelspiesse (NASA)

Smoke from prescribed fire treatment - conducted to remove timber slash, woody debris, grass, and brush - wafts over Arizona's Shoofly area. Credit: Stu Broce (NASA)

View from the ER-2 cockpit. Credit: Stu Broce (NASA)

The ER-2 taxis to the runway, followed by its chase car. Credit: Kirk Knobelspiesse (NASA)

ACEPOL scientists and engineers in the chase car. Credit: Andrzej Wasilewski (NASA)

The ER-2 pilot boards the aircraft. Because of high flight altitudes, pressurized suits are required. Credit: Andrzej Wasilewski (NASA)

The NASA ER-2 chase car. Because ground visibility and stability are problematic during takeoff and landing, a chase car driven by a pilot accompanies the aircraft to the runway. Credit: Andrzej Wasilewski (NASA)

The ACEPOL team attends a briefing prior to flight. Credit: Andrzej Wasilewski (NASA)

The ACEPOL mission is particularly relevant for PACE because it uses airborne versions of the HARP2 and SPEXone polarimeters. Here, the SPEX-Airborne team performs instrument tests. Credit: Kirk Knobelspiesse (NASA)

ER-2 flight tracks for the ACEPOL field campaign. NASA's high altitude, Lockheed ER-2 Earth resources aircraft are based at the Armstrong Flight Research Center on Edwards AFB. Credit: ACEPOL

ACEPOL was launched in late 2017 to acquire data with advanced active and passive remote sensors. The data will be used to develop and assess algorithms for retrieving profiles of aerosol optical and microphysical properties. Credit: ACEPOL

A satellite image shows the cruise track against a background of ocean color data. Colors indicate the amount of chlorophyll, where red is the highest and blue the is lowest. Credit: Norman Kuring (NASA)

Noah Walcutt (URI) inspects mangled sediment traps recovered from the first sampling site. Shark damage was later confirmed. Credit: Melissa Omand (URI)

A rosette is recovered at night. Credit: NASA GSFC

Philipp Guenther retrieves sediment traps in heavy seas. Credit: Stephanie Schollaert Uz (NASA)

Working on the ocean presents many challenges, including the threat of rough seas, inclement weather, nosy vertebrates, and round-the-clock sampling. Credit: NASA GSFC

Nitrogen is a key nutrient at the very base of the food chain, and its availability directly impacts the global marine ecosystem. Biogeochemical Oceanographer Hugo Berthelot samples different geographical locations under varying weather conditions as part of his research on the nitrogen cycle. Credit: Schmidt Ocean Institute

Dr. Mannino measures biological process rates. Credit: Schmidt Ocean Institute

Oceanographyer Colleen Durking studies particle size and distribution. Credit: Schmidt Ocean Institute/Monika Naranjo Gonzalez

Composite image of the contents of one sediment gel trap created from a series of photographs taken with a microscope. Credit: SOI

Zrinka Ljubesic (University of Zagreb) uses a microscope to identify phytoplankton and zooplankton in seawater samples. Credit: Stephanie Schollaert Uz (NASA)

Dr. Antonio Mannino installs a Coulometer in the on-board wet lab to measure particle productivity in water samples. Credit: Monika Naranjo Gonzalez (SOI)

The R/V Falkor contains wet and dry laboratory space, a control room for sonar and ROV operations, and offices. Here, Seaver Wang supplies water to a mass spectrometer in the Wet Lab. Credit: Monika Naranjo Gonzalez (SOI)

Designed to simulate naturally available light at different times and depth, the electro-squid 4000 experimental photosynthetron measures the biological activity and composition of microscopic plankton and the optical properties of seawater. Credit: Schmidt Ocean Institute/Ryan Vandermeulen

Phytoplankton are incubated in a one-of-a-kind photosynthetron, an incubation chamber used to study and measure the balance of phytoplankton oxygen/carbon exchange. Credit: Schmidt Ocean Institute/ Ryan Vandermeulen

Water is fed through the FlowCam at a specific magnification wherein a camera is triggered to take a digital image of each particle that passes by the field of view. Credit: Schmidt Ocean Institute/Aimee Neeley

Biological Oceanographer Aimee Neely uses a FlowCam to study particles suspended in seawater. The FlowCam combines the functionality of an imaging flow cytometer and a microscope in a single, powerful tool. Credit: Schmidt Ocean Institute/Monica Naranjo Gonzalez

High-resolution images of suspended particles are captured with an Imaging FlowCytobot (IFCB). The IFCB - an in-situ, automated submersible, uses a combination of flow cytometric and video technology to generate 30,000 images per hour. Credit: Schmidt Ocean Institute/Ivona Cetinic

Stephanie Schollaert Uz monitors the speed and direction of water flowing under the ship with an Acoustic Doppler Current Profiler (ADCP). Credit: SOI

A plot of the Wirewalker's track as it drifted freely for three days. Credit: SOI

The Wirewalker is a vertical profiling instrument package propelled by ocean waves. When attached to a cable, the motion of ocean waves "walks" the Wirewalker to the bottom as it takes continuous samples in the water column. Credit: SOI

Chief Officer Philipp Guenther assembles a Wirewalker, an autonomous platform used to collect high frequency data. Credit: SOI

A neutrally buoyant sediment trap (NBST) is deployed off the R/V Falkor. Credit: SOI

An aluminum block below one trap holds an iPhone camera programmed for time-lapse image collection. The images will be used for holographic research in collaboration with Brown University. Credit: SOI

Melissa Omand, Colleen Durkin, Phillipp Guenther and Ben Knorlein prepare a sediment trap for deployment. Credit: SOI

Sediment traps collect particles falling toward the sea floor. These particles - marine snow - are made up of organic matter, dead sea creatures, tiny shells, dust, and minerals. Credit: WHOI

Artist at Sea Kirsten Carlson poses with a replica of a cyanometer, a tool used to measure 'blueness', or the color intensity of blue sky. Credit: Schmidt Ocean Institute

Melissa Omand reacts to the first virtual reality experience created on board R/V Falkor: holographic images of plankton suspended in the water. Credit: SOI

Computer Scientist Benjamin Knorlein (Brown University) integrates virtual reality with a digital holographic microscope to present an up-close look at plankton in a view so finely detailed that the human eye can't capture it under normal observation. Credit: SOI

A holographic picture of a diatom chain. Credit: SOI

Noah Walcutt examines a holographic camera installed on a rosette. The camera can capture 40,000 images in a single deployment. Credit: SOI

A sampling rosette carrying a CTD is deployed off the R/V Falkor at night. Credit: SOI

A CTD may be incorporated into an array of Niskin bottles (referred to as a rosette). The bottles close at predefined depths to collect discrete samples for analysis. Credit: Monika Naranjo Gonzalez (SOI)

A CTD is used to measure the conductivity, temperature, and pressure of seawater (the D stands for depth, which is closely related to pressure). CTDs generate a vertical profile of the water column from surface to bottom. Credit: Hannes Grobe

Research Oceanographer Dr. Antonio Mannino stands next to the HyperSAS radiometer. Credit: Schmidt Ocean Institute/Kirsten Carlson

The HyperPro radiometer is an in-situ, free-fall profiling unit designed to measure the apparent optical properties of the ocean. It is periodically deployed off the stern. Credit: NASA GSFC

A view of the HyperSAS radiometer in the bow during rough seas. The lenses of the radiometer must be cleaned periodically because of sea spray. Credit: Kirsten Carlson (SOI)

The HyperSAS radiometer, installed in the bow, continously follows the angle of the sun and measures the color of the sea through a downward looking lens, and the color of the sky through another lens pointed upward. Credit: Schmidt Ocean Institute/Ryan Vandermeulen

Radiometers observe and capture the color of sea and sky by measuring different wavelengths of light. The team will use two different radiometers on this cruise: HyperSAS and HyperPro. Credit: Schmidt Ocean Institute

The team will use the data collected on this investigation to ground-truth satellite observations of ocean color (seen here in this composite image of average chlorophyll concentrations in Spring, 1998 to 2004. Credit: NASA

The R/V Falkor departs Honolulu on January 24, 2017. Credit: SOI

The carbon cycle consists of processes that exchange carbon within and between the ocean, atmosphere, Earth interior, and the seafloor. Along with the nitrogen and water cycles, the carbon cycle comprises a sequence of events that are key to make Earth capable of sustaining life. Credit: Kirsten Carlson

Phytoplankton are critical to our existence. They produce much of the world’s oxygen and remove carbon dioxide from the atmosphere, thereby helping to control climate. This collage shows a small number of the different kinds of phytoplankton that inhabit Earth's ocean. Credit: Heidi Sosik (WHOI)

The focus of Chief Scientist Dr. Ivona Cetinic´ (USRA/NASA) and her multidisciplinary team of oceanographers, engineers, biologists, and computer scientists is to study ocean particles, and specifically, the tiny phytoplankton that make up the base of our food web. Credit: SOI

The R/V Falkor cruise track superimposed on a map of sea surface temperature. The cruise will take 28 days to sail from Honolulu, HI to Seattle, WA. Credit: PO.DAAC/NASA

Carlie Wiener (SOI) examines a model of the R/V Falkor made out of legos. Credit: SOI

R/V Falkor was originally built as the Seefalke in 1981 in Lübeck, Germany as a fishery protection vessel but was converted for oceanographic research in 2009-2012. The 82-meter ship has a maximum speed of 17 knots and contains 16 berths for scientists, technicians, and cruise personnel. Credit: Schmidt Ocean Institute

Scientists from NASA Goddard Space Flight Center (GSFC) will collect data in collaboration with the Schmidt Ocean Institute (SOI) on a month-long cruise in the Pacific aboard the R/V Falkor. Credit: SOI

The Sea to Space Particle Investigation aims to improve the accuracy of particle size distribution products gathered from satellite and remote-sensing data. These data contain critical information that can improve our understanding of how Earth's living marine resources and carbon sequestration are responding to rising carbon dioxide levels and climate changes. Credit: SOI

The airborne PRISM instrument records light spectra reflected upward from the ocean. Data are used to identify reef compositions.

Meteorologist John Jelsema discusses an upcoming weather forecast with CORAL project scientist Michelle Gierach. Credit: James Round (NASA)

CORAL team members examine PRISM, an airborne instrument that measures the spectra of light reflected from surfaces below a plane. Credit: NASA

Lab testing of the Portable Remote Imaging Spectrometer (PRISM), an airborne instrument designed to observe hard-to-see coastal water phenomena. Credit: NASA JPL-Caltech

One of the Kaneohe Bay reefs studied by CORAL to assess the condition of vulnerable ecosystems. Credit: James Round (NASA)

A package of instruments is deployed during the CORAL field campaign. This cage contains instruments that measure how light is absorbed and scattered in water. Credit: Daniel Schar (HIMB)

Principal Investigator Eric Hochberg directs sampling efforts during the CORAL field campaign.

CORAL scientists identify reefs in Kaneohe Bay (Oahu, Hawaii). Credit: James Round (NASA)

CORAL Project Scientist Michelle Gierach at the Hawaii Institute of Marine Biology on Oahu. Credit: James Round (NASA)

Coconut Island - CORAL's base of operations in Hawaii. Credit: James Round (NASA)

CORAL's field campaign will use advanced airborne instruments and in-water collection methods to survey the reefs of Palau, the Mariana Islands, portions of Australia's Great Barrier Reef, and Hawaii. Credit: David Burdock (NOAA)

The three-year COral Reef Airborne Laboratory (CORAL) mission will survey a portion of the world's coral reefs to assess the condition of these threatened ecosystems. Credit: NOAA/NMFS/PIFSC/CRED Oceanography Team

Offloading equipment after the KORUS-OC field campaign. Credit: Joaquin Goes (Columbia University)

R/V Onnuri and R/V Eardo in port after the KORUS-OC field campaign. Credit: Joaquin Goes (Columbia University)

Chlorophyll concentrations in the waters off South Korea during the KORUS-OC field campaign. The data were collected by GOCI, an instrument on South Korea's Communication, Ocean and Meteorological Satellite. Credit: NASA Earth Observatory

Noctiluca cells from the Yangtze River plume as seen by FlowCAM. Credit: Joaquin Goes (Columbia University)

Deploying instruments in the Yangtze River plume. River plumes are generated by the flow of buoyant river water into the coastal ocean, where it impacts the properties and circulation of seawater. Credit: Joaquin Goes (Columbia University)

Waves break over the bow of the RVOnnuri in rough seas. Credit: Joaquin Goes (Columbia University)

Containers are carefully hoisted on board the research vessel. Credit: Joaquin Goes (Columbia University)

Onboard cranes lift heavy equipment onto the deck of the R/V Onnuri. Credit: Joaquin Goes (Columbia University)

Containers of eqiupment destined for the seas surrounding South Korea await loading. Credit: Joaquin Goes (Columbia University)

Scientific equipment is organized dockside for loading on board the R/V Onnuri. Credit: Joaquin Goes (Columbia University)

Multiple vehicles bearing scientific equipment queue for boarding. Credit: Joaquin Goes (Columbia University)

The loading process for the KORUS-OC field campaign begins on the R/V Onnuri. Credit: Joaquin Goes (Columbia University)

Scientists discuss the combined ship-based and airborne tracks for the KORUS-OC field campaign. Credit: Ivona Cetinić (NASA)

The R/V Onnuri, one of two KORUS-OC research vessels, awaits crew and cargo. Credit: Ivona Cetinić (NASA)

Chlorophyll-a distribution in waters off the Korean peninsula as seen by the Geostationary Ocean Color Imager (GOCI) in May 2011. In 2016, KORUS-OC scientists seek to better understand the role that phytoplankton play in ocean processes.

The Korea - United States Ocean Color (KORUS-OC) Study will focus on the links between satellite- and ship-based measurements of ocean color, biology and biogeochemistry, along with the composition of coastal waters adjacent to the Republic of Korea.

The R/V Atlantis in port. Credit: Dick Pittenger (WHOI)

Françoise Morison (URI) and Caitlin Russell secure incubators used to measure phytoplankton growth rates. Credit: Stephanie Schollaert Uz (NASA)

Logan Johnsen, navigator and second mate, studies the weather to plan the best route to the North Atlantic. Credit: Stephanie Schollaert Uz/NASA

Aboard the R/V Atlantis, several cargo containers - assembled and outfitted to create a laboratory (shown here) - are used to test samples for biological, chemical and physical parameters. Credit: Michael Starobin (NASA)

Alvin, a 3-person research submarine, is offloaded from the R/V Atlantis during preparation for NAAMES. Credit: Dick Pittenger (WHOI)

Oceanographer Peter Gaube describes the Conductivity, Temperature, and Depth (CTD) instrument, a cluster of sensors that generate a vertical profile of the water column. Credit: Stephanie Schollaert Uz (NASA)

Bloggers from around the country listen to a presentation by Dr. Mike Behrenfeld (OSU). Credit: Michael Starobin (NASA)

NAAMES Chief Scientist Mike Behrenfeld explains the importance of plankton for life on Earth. Credit: Michael Starobin (NASA)

On May 10, a dedicated group of 20 bloggers travelled to Woods Hole, MA to learn about the NAAMES field campaign. Credit: Michael Starobin (NASA)

Jason Graff (OSU) measures the carbon in phytoplankton and sorts species with a laser-based instrument. Credit: Stephanie Schollaert Uz (NASA)

Cleo Davie-Martin (OSU) measures volatile organic compounds (VOCs) emitted by phytoplankton. Credit: Stephanie Schollaert Uz (NASA)

The R/V Atlantis cruise track (red dashes). Green seas indicate that phytoplankton are starting to bloom in the North Atlantic. Credit: Norman Kuring (NASA)

Every spring and fall, millions of microscopic plants bloom to color the North Atlantic with vivid strokes of blue, turquoise, green, and brown. NAAMES seeks to understand bloom processes for better ocean management and assessment of ecosystem change. Credit: Norman Kuring (NASA)

R/V Atlantis steams away from Woods Hole for a seasonal phytoplankton bloom in the North Atlantic. Credit: Michael Starobin (NASA)

The C-130, carrying airborne instrumentation, approaches Sable Island. Credit: Codey Barnett (NASA)

The NAAMES team prepares a C-130 for flight to St. John's International Airport, where it will rendezvous with the R/V Atlantis. Credit: Denise Wineberry (NASA)

Dendogram illustrating the parameters that will be studied during the NAAMES field campaign.

NAAMES is a five-year investigation to resolve key processes controlling ocean system function, their influences on atmospheric aerosols and clouds and their implications for climate.