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@NASA
Bio: News from NASA. | We typically post in Eastern Time (ET). To convert to UT/GMT, add 5 hours (4 hours during Daylight Saving Time).
Followers: 1.378.048 | Following: 143
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@AsteroidWatch
Bio: JPL's Near Earth Object Office coordinates NASA's efforts to detect, track & characterize potentially hazardous asteroids & comets that could approach Earth.
Followers: 792.997 | Following: 101
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@newscientist
Bio: New Scientist is the world's leading science and technology weekly
Followers: 371.426 | Following: 2.942
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@ProfBrianCox
Bio: Currently working on a book and lecture course at the University of Manchester. About to start filming Wonders of Life for BBC / Discovery Science Channel
Followers: 401.970 | Following: 94
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@wiredscience
Bio: Science, space, energy and robot sharks with lasers. Hosted by the Wired Science team: @betsymason, @9brandon, @davemosher & @danielleventon.
Followers: 541.447 | Following: 92
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@CERN
Bio: CERN, the European Organization for Nuclear Research, is the biggest particle physics laboratory in the world.
Followers: 344.888 | Following: 38
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@NatGeo
Bio: Since 1888, we've traveled the Earth, sharing its amazing stories with new generations. Official Twitter account of National Geographic.
Followers: 954.911 | Following: 23.131
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@neiltyson
Bio: Astrophysicist, American Museum of Natural History. Author: The Pluto Files, Death By Black Hole. Host: StarTalk Radio http://StarTalkRadio.net
Followers: 224.806 | Following: 65
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@apod
Bio: Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.
Followers: 241.471 | Following: 1
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@RichardDawkins
Bio: Richard Dawkins Personal Twitter Account.
Followers: 233.122 | Following: 40
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@sciam
Bio: Scientific American Magazine and online, over 165 years of science news
Followers: 238.699 | Following: 13.311
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@SETIInstitute
Bio: We believe we are conducting the most profound search in human history — to know our beginnings and our place among the stars.
Followers: 150.588 | Following: 1.788
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@NASAJPL
Bio: NASA Jet Propulsion Laboratory manages many of NASA's robotic missions exploring Earth, the solar system and our universe. Tweets from JPL's News Office.
Followers: 210.052 | Following: 321
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@AstrobiologyNAI
Bio: NASA Astrobiology Institute: we study life in the Universe!
Followers: 948.608 | Following: 7
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@CassiniSaturn
Bio: Cruising around Saturn, its moons and the magnificent rings
Followers: 147.214 | Following: 286
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@MarsRovers
Bio: Roaming the Red Planet on six wheels since Jan 2004. The official mission Twitter of the Spirit and Opportunity rovers.
Followers: 142.176 | Following: 136
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@NASAKepler
Bio: The Kepler Mission is designed to survey our region of the Milky Way galaxy to discover Earth-size planets in the habitable zone.
Followers: 159.103 | Following: 32
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@smithsonian
Bio: We're not a museum. We're 19 of them! Plus 9 research centers & the National Zoo. Follow your favorites
Followers: 501.761 | Following: 126
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@dailygalaxy
Bio: Your daily dose of awe: science, space, tech
Followers: 129.877 | Following: 11.089
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@TheScienceGuy
Bio: Science Educator seeks to change the world...
Followers: 152.064 | Following: 25
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@donttrythis
Bio: I play a scientist on TV. Obsessive maker of things. Host of Mythbusters on the Discovery Channel.
Followers: 533.057 | Following: 124
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@MarsPhoenix
Bio: I dig Mars!
Followers: 150.088 | Following: 6
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@nytimesscience
Bio: Science, Environment, Space and Cosmos News From NYTimes.com/Science
Followers: 216.796 | Following: 141
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@bengoldacre
Bio: Nerd cheerleader, Bad Science person, stats geek, research fellow in epidemiology, procrastinator. If it's important, email's better ben@badscience.net
Followers: 142.384 | Following: 866
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@NatureNews
Bio: The latest science news and opinion from Nature magazine. Winner: Best Twitter, Online Media Awards 2011. Most tweets by @BL_Owens and @Ananyo.
Followers: 236.645 | Following: 2.361