NASA @NASA
#GRACEFO, a mission that will track the movement of water on Earth, is launching along with five of @IridiumComm’s Iridium NEXT communications satellites as part of a unique rideshare arrangement on the @SpaceX Falcon 9 rocket. Learn more about this launch https://t.co/e6lyrHyLH4 https://t.co/ZwOACF — PolitiTweet.org