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GRACE-FO Satellite on a Turntable Before Launch

A GRACE-FO satellite and its turntable fixture at the Astrotech Space Operations processing facility at Vandenberg Air Force Base, California.

A GRACE-FO satellite and its turntable fixture at the Astrotech Space Operations processing facility at Vandenberg Air Force Base, California.

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USAF

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Illustration of GRACE-FO in orbit (view 4)
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Illustration of GRACE-FO in orbit
Illustration of GRACE-FO (View 4)
A map of groundwater storage trends for Earth's 37 largest aquifers using GRACE data, showing depletion and replenishment in millimeters of water per year. 
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A map of groundwater storage trends for Earth's 37 largest aquifers using GRACE data, showing depletion and replenishment in millimeters of water per year.
Map of Groundwater Storage Trends for Earth's 37 Largest Aquifers
Many of today’s most pressing climate science challenges hinge on knowing how and where water is moving on Earth. GRACE-FO will continue the successful partnership between NASA and the German Resea...
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Image of the spacecraft in orbit over Earth, with the black of space.
GRACE-FO Launch Press Kit
GRACE-FO, a collaboration between NASA and German Research Centre for Geosciences (GFZ), launched from Vandenberg Air Force Base on on May 22, 2018.
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A vertical image of the rocket launching in front of a blue sky.
GRACE-FO Launches
Work begins to build NASA’s twin satellites, under construction by Airbus Defense and Space.
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NASA’s twin satellites, under construction by Airbus Defense and Space, will be the follow-on spacecraft of the GRACE mission, which have contributed significantly to global climate research since 2002.
Build Commences on GRACE-FO Satellites
A simplified example of how the distance between the GRACE-FO satellites changes as they pass from the Caribbean Sea across Colombia and Peru.
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A simplified example of how the distance between the GRACE-FO satellites changes as they pass from the Caribbean Sea across Colombia and Peru (which have higher mass than the oceans) to the Pacific Ocean. Panel 1: When both spacecraft are over the ocean, the distance between them is relatively constant.
How GRACE-FO Measures Gravity
GRACE Follow-On continues the critical mission of measuring the movements of mass within and between Earth’s atmosphere, oceans, land and ice sheets, as well as below Earth’s surface.
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GRACE Follow-On, scheduled to launch in spring 2018, will continue the critical mission of measuring the movements of mass within and between Earth’s atmosphere, oceans, land and ice sheets, as well as below Earth’s surface.
GRACE-FO Fact Sheet
The GRACE-FO satellites were assembled by Airbus Defence and Space in Germany. The photo shows one of the satellites in the testing facility of IABG, an Airbus subcontractor, in Munich (view 2). 
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The GRACE-FO satellites were assembled by Airbus Defence and Space in Germany. The photo shows one of the satellites in the testing facility of IABG, an Airbus subcontractor, in Munich (view 2).
GRACE-FO Satellites During Testing (View 2)
The twin satellites of NASA's Gravity Recovery and Climate Experiment Follow-on, or GRACE-FO, will track the movement of water around Earth. This short video explains how and why it's important.
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Explaining why GRACE-FO is so important.
Why Is GRACE-FO So Important?
GRACE-FO in a protective shipping container arriving at a new facility at Vandenberg Air Force Base, California.  
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GRACE-FO in a protective shipping container arriving at a new facility at Vandenberg Air Force Base, California.
GRACE-FO Arrives at Vandenberg
The rocket carrying GRACE-FO lifts off into a blue sky, with the Pacific Ocean beneath it.
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The rocket carrying GRACE-FO lifts off into a blue sky, with the Pacific Ocean beneath it.
GRACE-FO Launch, Sky and Sea
Illustration of GRACE-FO in orbit (view 5).
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Illustration of GRACE-FO in orbit over Earth.
GRACE-FO in Orbit (View 5)
Between 2002 and 2016, Antarctica shed approximately 125 gigatons of ice per year, causing global sea level to rise by 0.35 millimeters per year.
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Between 2002 and 2016, Antarctica shed approximately 125 gigatons of ice per year, causing global sea level to rise by 0.35 millimeters per year.
Antarctic Ice Loss 2002-2016
The two GRACE-FO satellites are seen from GFZ’s Satellite Laser Ranging Station in Potsdam, Germany, on May 23, 2018 at 22:16 UTC and 22:17 UTC, respectively.
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The bright lights of the spacecraft are seen against the dark black of space.
GRACE-FO Satellites From Potsdam
A long exposure of the  GRACE-FO launch from Vandenberg
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The rocket's blaze is seen across the sky in this long exposure view with the ocean in the foreground.
GRACE-FO Launch, Long Exposure
The GRACE-FO satellites were assembled by Airbus Defence and Space in Germany. The photo shows the satellites in the testing facility of IABG, an Airbus subcontractor, in Munich (view 1).
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The GRACE-FO satellites were assembled by Airbus Defence and Space in Germany.
GRACE-FO Satellites During Testing
The GRACE mission launched in 2002, changing our understanding of Earth.
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The GRACE mission launched in 2002, changing our understanding of Earth.
15 Years of GRACE
The Laser Ranging Interferometer instrument.
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The Laser Ranging Interferometer instrument.
Laser Ranging Interferometer
The GRACE-FO satellites were assembled by Airbus Defence and Space in Germany. The photo shows one of the satellites in the testing facility of IABG, an Airbus subcontractor, in Munich (view 3). 
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The GRACE-FO satellites were assembled by Airbus Defence and Space in Germany. The photo shows one of the satellites in the testing facility of IABG, an Airbus subcontractor, in Munich (view 3).
GRACE-FO Satellites in Testing
GRACE Follow-On will test a Laser Ranging Interferometer to measure intersatellite distance changes with unprecedented precision. 
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GRACE Follow-On – the future of satellite geodesy. Launching in 2017, this mission will be the first to use a Laser Ranging Interferometer to measure intersatellite distance changes with unprecedented precision.
Laser Ranging Interferometer
The NASA/German Research Centre for Geosciences GRACE Follow-On spacecraft launches from Space Launch Complex 4E at Vandenberg Air Force Base in California.
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The rocket carrying GRACE-FO blasts off from the launch pad.
GRACE-FO Launches, Wide Shot
GRACE-FO arriving at Vandenberg Air Force Base, California, from Germany. 
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GRACE-FO arriving at Vandenberg Air Force Base, California, from Germany.
GRACE-FO Arrives at Vandenberg
Illustration of GRACE-FO separating from Falcon 9 rocket after launch.
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Illustration of GRACE-FO separating from Falcon 9 rocket after launch.
GRACE-FO Separating from Rocket After Launch
A 3D interactive model of NASA's GRACE-FO spacecraft.
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A 3D model of NASA's GRACE-FO spacecraft.
GRACE-FO 3D Model
GRACE-FO mission logo 
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GRACE FO logo
GRACE-FO Logo

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