Tom Speer explaining the #SOFIA telescope mount and the flightpath of the @SofiaTelescope #spacetweetup via twitterrific
The grey canisters are for ballast. They say they're filled with water. We know better The grey canisters are for ballast. They say they're filled with water. We know better #koelsch #spacetweetup via SimplyTweet
spacetweetup inside sofia proj mgr explains the ins&outs #spacetweetup inside #sofia proj mgr explains the ins&outs via SimplyTweet
