GRACE, GRACE-FO Satellite Data Track Ice Loss at the Poles

Greenland’s Steenstrup Glacier, with the mid-morning sun glinting off the Denmark Strait in the background. The image was taken during a NASA IceBridge airborne survey of the region in 2016. (Credit: NASA/Operation IceBridge)

Greenland and Antarctica are melting – but how quickly and which areas are most affected? Nearly 20 years of satellite data provide key insights into these questions.


PASADENA, Calif. (NASA PR) — During the exceptionally warm Arctic summer of 2019, Greenland lost 600 billion tons of ice – enough to raise global sea levels by nearly a tenth of an inch (2.2 millimeters) in just two months, a new study shows.

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Updated Global Launch Schedule for May

Mars InSight lander (Credit: NASA)

There are some interesting launches among the nine orbital flights currently scheduled for May. Highlights include:

  • NASA’s Mars InSight lander with two deep-space CubeSats (May 5);
  • SpaceX’s first flight of a Falcon 9 Block 5 variant (NET May 7);
  • Two Gravity Recovery and Climate Experiment Follow-On (GRACE Follow-On) satellites (May 19);
  • Orbital ATK’s Antares Cygnus ISS resupply mission (May 20);
  • China’s Chang’e-4 lunar relay satellite with two deep-space microsats (TBD); and,
  • Rocket Lab’s first Electron commercial flight (TBD).

There have been 40 orbital launches through April, with 38 successes, one failure and one partial failure.

The schedule below is subject to change. Please check with our friends at Spaceflight Now for updates.
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Updated Global Launch Schedule Through April

Expedition 55 crew members Ricky Arnold, Drew Feustel and cosmonaut Oleg Artemyev. (Credit: NASA)

Below is the updated launch schedule through the end of April. The 17 scheduled launches include:

  • 7 USA (6 Falcon 9, 1 Atlas V)
  • 4 Russia (1 Soyuz, 1 Soyuz-2.1, 1 Proton, 1 Rockot)
  • 3 India (2 GSLV Mk.2, 1 PSLV)
  • 2 China (2 Long March 3B)
  • 1 Europe (1 Ariane 5).

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