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Sun
May 22, 2016

  Orbit: Polar-orbiting at about 380 miles in altitude. TIMED explores Earth's mesosphere and lower thermosphere (40-50 miles up), the least...
Earth
May 22, 2016

After a 14-year deployment on a mission to collect data on Earth's atmosphere and its interactions with the Sun, NASA's Upper Atmosphere Research...
Earth
May 22, 2016

The Atlas Program ATLAS-1, the first of the ATLAS series of Shuttle flights, was an important part of the long-term, coordinated research that...
Earth
May 22, 2016

The Combined Release and Radiation Effects Satellite (CRRES) was launched into a geosynchronous transfer orbit (GTO) for a nominal three-year...
Earth
May 22, 2016

NASA's Earth Radiation Budget Satellite (ERBS) was designed to investigate how energy from the Sun is absorbed and re-radiated by the Earth....
Universe
May 22, 2016

The Extreme-Ultraviolet Explorer (EUVE) was a spinning spacecraft designed to rotate about the Earth/Sun line. EUVE was a part of NASA's Explorer...
Universe
May 22, 2016

*/ After the launch failure of the HETE-1 spacecraft, it was determined that gamma ray burst science was still a priority and the HETE-2 mission...
Sun
May 22, 2016

The International Sun-Earth Explorer, or ISEE, program was an international cooperative program between NASA and ESA designed to study the...
Universe
May 22, 2016

*/ In November of 1998 and 1999, Earth crossed the fresh ejecta of comet Tempel -Tuttle, resulting in large numbers of meteors. This offered an...
OAO
Universe
May 22, 2016

The Orbiting Astronomical Observatory (OAO) was a series of four satellites launched by NASA between 1966 and 1972. Two of the missions were...

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