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Engineers tested the @NASA_Orion parachute system in a scenario mimicking launch abort. See the action:
Happy 24th #Birthday @NASA_Hubble, launched in 1990 w/ the now-NASA Admin. Bolden aboard #tbt
Guess who's 24 today? @NASA_Hubble! These are just a few people who helped make it happen!
Going to @USAScienceFest? Kids can join @NASA_Orion for an activity or download, share online
.@AstroRM Steve Swanson & @Astro_Wakata on #ISS greet President Obama during his Japan visit
Lake Superior is slow in giving up its winter ice: view from our Aqua satellite.
#ISS crew Swanson, @AstroRM & @Astro_Wakata greeted President Obama during his Japan visit.…
Rick and Steve did a fantastic job on the spacewalk today.
Retweeted by NASA
Engineers test parachutes for @NASA_Orion in AZ while progress @NASA_Kennedy presses ahead
Spiders in space weave a web of scientific inspiration for @SpiderManMovie fans!…  #spiderman
Lyrids are pieces of comet debris seen for over 2,600 years. Watch our collage from April 22 Lyrids meteor shower:…
What will you click? Test website navigation for a redesigned…
An EVA selfie. The space suit makes it very difficult to get a good selfie. I tried several today.
Retweeted by NASA
.@AstroRM shared this image of the @SpaceX Dragon from today's #spacewalk from the #ISS:
A quartet of galaxies from @chandraxray data highlights pro & amateurs working together!
Check out our latest challenge to improve the astronaut email on ISS using Disruption Tolerant Networking (DTN).…
Retweeted by NASA
The @ISS_Research of Spiders in Space still weaves an inspiring web, this time for Spider-man fans… @NASA
Retweeted by NASA
.@SciAstro speaking at @airandspace's breakfast reception opening the Repairing Hubble Exhibit
Congo rainforest losing its greenness, #NASA satellite data reveals.   #EarthRightNow
Our radar imaging mission captures this pic of volcanoes in Guatemala:…  #EarthRightNow
Inside #ISS @Astro_Wakata helps the #spacewalk crew get situated before they take off their spacesuits
#spacewalk complete at 11:32a. Ground controllers confirm the newly installed #ISS computer relay unit is running
The #spacewalk crew completed their tasks outside #ISS today and are heading inside
Quick & clean: the #spacewalk crew completed installing the new backup computer relay unit: