In NASA's Building 8337 at teddy kis, technicians and engineers cleaned and took samples from the payload fairing that will protect ICESat-2 🛰️ during launch. Liftoff atop a ULA Delta II 🚀 is scheduled for Sept. 12, 2018. More photos: go.nasa.gov/2LFuioJ

Gravitational lensing was predicted by Albert Einstein's General Theory of Relativity. A galaxy can be so massive it warps the fabric of space-time, forcing light to travel along curved paths like the greenish streak seen by Hubble – lower center. go.nasa.gov/2srAHvR

Our colleagues at UA Fairbanks recently wrapped up Operation #IceBridge Alaska’s 2018 spring campaign. Here's a photo of the Wrangell Mountains, showing the persistent clouds the team had to work with throughout the campaign. (CREDIT: Chris Larsen)

!!!!! 🚀🛰️❄️ !!!!! (We might be a bit excited) x.com/ulalaunch/stat…

Ice losses from Antarctica have tripled since 2012, increasing global sea levels by 0.12 inch (3 millimeters) in that timeframe alone, according to a major new international climate assessment funded by NASA and European Space Agency. go.nasa.gov/2l8yMII

We’ve arrived! Our ICESat-2 satellite travelled from Northrop Grumman in AZ to Vandenberg AFB, CA, this week-- ready to take its place in ULA's last Delta II rocket. Only 3 months til scheduled liftoff!! NASA's Launch Services Program nasa.gov/feature/goddar…

Contemporary Artist Zaria Forman joined the Operation IceBridge flight crew in 2017 over Greenland. She took aerial photos aboard the @NASA_Wallops-based P-3 Orion research aircraft, and creates massive drawings in her studio. HT: NASA Ice Via: National Geographic: on.natgeo.com/2Mpmk2R

Our #DeltaII ride into space from ULA is coming together at Vandenberg AFB! blogs.nasa.gov/icesat2/2018/0…

ICESat-2 launches in September- and you could be there! Applications now accepted for our NASA Social at Vandenberg AFB. Ice, space lasers & the last liftoff of ULA's #DeltaII rocket – it’s the stuff great tweets are made of! nasa.gov/feature/ice-ic…

The next time our lasers fire, ICESat-2 will be orbiting Earth and beginning its mission to monitor changes in ice sheets, glaciers and sea ice. nasa.gov/feature/goddar…

🚀🛰️💚❄️ #WorldEmojiDay

We're launching ICESat-2 in September, and you have the chance to see the spacecraft off. Apply to join us at Vandenburg Air Force Base in California to watch the launch with a NASA Social. But hurry, the application closes Sunday at 11:59pm ET! go.nasa.gov/2uCuHBH

One more day! Apply to watch #ICESat2 launch as part of our NASA Social by 11:59pm ET Sunday. nasa.gov/social/ice-ice…

Melting permafrost, drained lakes and an increase in wildfires are all changing Alaska. More than 30 years of NASA Landsat data show scientists changes linked to Alaska’s warming temperatures and the effects they could have on plants, animals and humans. go.nasa.gov/2JTJtbZ

Less than 6 weeks til #ICESat2 launch, now scheduled for no earlier than 9/15! Media accreditation now open: nasa.gov/press-release/…

Set your alarm and tune in TODAY at nasa.gov/live at 10:30am PT / 1:30pm ET to learn more about #GRACEFO, launching tomorrow on #SpaceX from Vandenberg AFB. Got questions? #askNASA

At teddy kis a ULA Delta II booster was removed from its shipping container. The rocket will be carrying ICESat-2, which will help scientists investigate why, and how much, Earth’s frozen and icy areas are changing. More: go.nasa.gov/2Lp9927