Science
National Geographic
Since 1888, we've traveled the Earth, sharing its amazing stories with new generations. Official Twitter account of National Geographic.1,911,341 followers | Follow
Asteroid Watch
JPL's Near Earth Object Office coordinates NASA's efforts to detect, track & characterize potentially hazardous asteroids & comets that could approach Earth.874,621 followers | Follow
WIRED Science
Science, space, energy and robot sharks with lasers. Hosted by the Wired Science team: @betsymason, @9brandon, @adamspacemann, @davemosher & @danielaphd.689,973 followers | Follow
Science Channel
Thought-provoking updates, insider news and more from Science...show your #nerdtweet pride!510,131 followers | Follow
Science News
Covering important and emerging research in all fields of science. Publisher @society4science. Moderator @pwthornton. See also @sciencenewskids.303,562 followers | Follow
National Geographic
Follow us for the latest on what's happening at the National Geographic Channel in the U.S. Questions and comments welcome!220,332 followers | Follow
The SETI Institute
We believe we are conducting the most profound search in human history — to know our beginnings and our place among the stars.218,796 followers | Follow
NASA Kepler
The Kepler Mission is designed to survey our region of the Milky Way galaxy to discover Earth-size planets in the habitable zone.215,176 followers | Follow
CassiniSaturn
Cruising around Saturn, its moons and the magnificent rings194,448 followers | Follow
Spirit and Oppy
Roaming the Red Planet on six wheels since Jan 2004. The official mission Twitter of the Spirit and Opportunity rovers.152,903 followers | Follow
WeatherPlanet
Space & Astronautics News, NASA, NOAA, ESA, USGS, spaceflight, weather, astronomy120,343 followers | Follow
Michio Kaku
Theoretical Physicist, Professor, Futurist, Bestselling Author & Popularizer of Science85,309 followers | Follow
Johnson Space Center
NASA's JSC is the lead center for the International Space Station and the Orion spacecraft, and the home of the Mission Control Center and NASA astronaut corps.66,205 followers | Follow
Popular Science
Popular Science's Twitter feed, the source for science and technology news from the future. Includes daily blog posts, every article from the magazine and more62,180 followers | Follow
NASA Goddard
Tweeting the best in NASA astronomy, Earth sciences and robotic exploration for the Goddard Space Flight Center.47,488 followers | Follow
Mike Larsen
Tweeting the latest and greatest in Space and Science News! - NASA Information & News, Space, Astronomy, Science, Technology, Earth and the Environment46,915 followers | Follow
Twisst ISS alerts
Twisst sends you a tweet when the international space station (ISS) will be visible at your location. Created by journalist/webdeveloper @tjaap. #science #space46,884 followers | Follow
LiveScience
Science news covering top stories of the day in health, environment, animals, technology and space42,903 followers | Follow
NASAEyesOnTheEarth
Being rocket scientists isn't enough...we're climate scientists too! News from NASA on all things climate.38,175 followers | Follow
NASA Webb Telescope
NASA's James Webb Space Telescope will give us an amazing look at the universe! The project is working to a 2018 launch date.27,036 followers | Follow
NASA Images
Largest collection of NASA related media from a single, searchable site.21,242 followers | Follow
NASA Desert RATS
The NASA Desert RATS consists of multiple groups from NASA centers, universities, and other organizations. Goal: human-robotic systems for space exploration!20,541 followers | Follow
NewHorizons2015
The First Space Mission to Explore Planet Pluto and the Kuiper Belt19,471 followers | Follow
My Science Cloud
My Science Cloud is a new educational twitter feed for Science development. We are currently developing a wide range of educational materials for Science.17,510 followers | Follow
NASA's Juno Mission
Trekking to Jupiter to improve our understanding of the planet’s origins and the formation of planetary systems everywhere. Also at www.nasa.gov/juno15,102 followers | Follow
ESA Planck
A European Space Agency (ESA) spacecraft to understand the origin and evolution of our Universe14,305 followers | Follow
Karen James
Biologist, outdoorswoman, aspiring explorer, space enthusiast, evolution booster, atheist, alpine pilgrim. The mind is a chaos of delight.—Charles Darwin7,082 followers | Follow
Space Tweep Society
The official Twitter account of the Space Tweep Society. Posting news & updates on society happenings. #STwS #spacetweeps6,023 followers | Follow
NASA Glory
NASA's new aerosol, total solar irradiance, and climate obsessed low-earth orbiting satellite. Launches in 2011!5,532 followers | Follow
Sciencenibber
Using Nibipedia for science's noblest cause, world domination!!1,588 followers | Follow
