3.9M Followers 127 FollowingThe Jet Propulsion Laboratory manages many of NASA's robotic missions exploring Earth, the solar system, and our universe. (Verification: https://t.co/iicDVgZd2m)
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235K Followers 978 FollowingThe IOP is the professional body and learned society for physics in the UK & Ireland, with an active role in promoting co-operation in physics around the world.
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2.5M Followers 813 FollowingKnowledge is the best medicine. Providing you with trustworthy health information from the halls of @Harvardmed and world-famous affiliated hospitals.
4.2M Followers 52 FollowingYour friendly neighborhood NASA Mars rover. Exploring the Red Planet since 2012. Team headquartered at @NASAJPL 🚀 (Verification: https://t.co/T3V89CljZ2)
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293K Followers 164 FollowingOfficial Twitter site for Grand Canyon National Park (primarily outgoing feed) Email: [email protected] Photos posted are public domain or US govt works.
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1.8M Followers 616 FollowingProfessional rocket orientation specialist, explainer of flamey stuff and rocket chaser. Bringing space down to Earth for everyday people 🚀 #dearMoonCrew
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