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Last updated on April 16, 2014 at 17:34 EDT

Latest HEASARC Stories

2012-01-09 15:51:00

WASHINGTON, Jan. 9, 2012 /PRNewswire-USNewswire/ -- After 16 years in space, NASA's Rossi X-ray Timing Explorer (RXTE) has made its last observation. The satellite provided unprecedented views into the extreme environments around white dwarfs, neutron stars and black holes. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO) RXTE sent data from its last science observation to the ground early on Jan. 4. After performing engineering tests, controllers at NASA's Goddard Space...

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2008-11-17 12:32:21

Massive energy releases occur every day in the upper reaches of Earth's atmosphere. Lightning may give rise to these bursts of radiation. However, unlike the well-known flashes of light and peals of thunder familiar to Earth-dwellers, these energy releases are channeled upward and can be detected only from space. Our atmosphere protects us from the effects of this radiation, but the mechanisms at work can impact Earth's upper atmosphere and its space environment. A new nano satellite mission,...