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#MarsComet will pass within 88K miles of Mars Sunday. Watch how we're observing the event: http://youtu.be/FG4KsatjFeI pic.twitter.com/s02yh3DO5L
Like a drop of dew hanging on a leaf, the moon Tethys appears to be stuck to Saturn's rings from this perspective. pic.twitter.com/RuS5HDqqWS
Expanding coronal loops at the edge of the sun. Perspective? Loops are more than 15 times the size of Earth. http://twitter.com/NASA/status/523489936096645121/photo/1pic.twitter.com/U37JsjQXgI
What's our new cover image? Artist concept of #MarsComet. Closest approach ~2:27pm ET Sunday: http://go.nasa.gov/1t0Eb3W pic.twitter.com/C0BTwfF9AJ
#Seattle to #Houston under a full moon. Watch the reflection spot track across in this #SpaceVine #Timelapse https://vine.co/v/ObZYKjtj1lA
Watch & discover what happened this week @NASA: [video] http://youtu.be/cOGNsTd4cb4 pic.twitter.com/BmcDvfjvbz
A hidden ocean or a 'fossil' core on Saturn icy moon Mimas? Details: http://go.nasa.gov/1CxKDiE @CassiniSaturn pic.twitter.com/xH1vV3FR6h
#Sunglint highlights the entire east coast of the #USA on a gorgeous Friday afternoon. pic.twitter.com/vj7MrPx0EO
ATTENTION EARTHLINGS! Third Rock Radio is now streaming in both 128kbps MP3 & 64kbps AAC format crystal clear stereo. pic.twitter.com/BYFyhoc3d4
#Spacewalks are all the rage this month on @Space_Station. Watch our weekly #ISS update: http://youtu.be/isEGcax2YSQ Question? Use #SpaceToGround
Retro-propulsion data may help us with future Mars landings: http://1.usa.gov/1voaUQq #321TechOff #JourneyToMars pic.twitter.com/x71Tzb5HQa
Join @NASAedu for a chat today at 1pm ET at http://1.usa.gov/1pkgy05 to learn how to help us study clouds. pic.twitter.com/SwUWci6zps
Pretty spectacular #sunrise glinting off the #ISS pic.twitter.com/c6ftdKxzdA
Two spacewalks down, one to go for @Space_Station crew: http://go.nasa.gov/1CtxdUN Next spacewalk Weds at 9:24am ET. pic.twitter.com/1BOJnB5TI0
We’re back flying over Antarctica, seeing how the ice is changing: http://go.nasa.gov/1yIJlUu #EarthRightNow @NASA_Ice pic.twitter.com/R1bCwbimm7
Bathed in a beam of particles from Saturn's chaotically tumbling moon Hyperion: http://go.nasa.gov/1CsgAsN @CassiniSaturn pic.twitter.com/zdR0YSSiqH
We spotted an extremely distant galaxy through a cosmic magnifying glass: http://go.nasa.gov/1yHTxwq @NASA_Hubble pic.twitter.com/nrGxxuYkN4
Hear us! We're on @Soundcloud. Sit back, listen & enjoy our spacey sounds: https://soundcloud.com/nasa
https://soundcloud.com/nasa/apollo-11-thats-one-small-step-for-a-man …
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