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Compton Reentry
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Compton Reentry
Credit & Copyright: NASA
Explanation: Nine years ago the massive Compton Gamma Ray Observatory, the second of NASA's space-based great observatories, was deployed in low earth orbit. Lofted above the protective atmosphere, Compton's instruments could explore the extreme high-energy Universe in gamma rays -- photons with 100,000 times or more the energy of visible light. The premier gamma-ray observatory far exceeded expectations for a two- to five-year mission, but a recent gyroscope failure has prompted NASA to decide to steer the satellite safely back into the atmosphere. Illustrated above, the controlled re-entry will occur early tomorrow, June 4th, in a remote area of the Pacific Ocean, approximately 2,500 miles southeast of Hawaii. The re-entry location, the largest area (about 10 million square miles) devoid of any populated land available for the observatory's re-entry, was selected to virtually eliminate the risk of human casualty. Compton's lasting legacy of discovery will include the detection of more than 400 celestial gamma-ray sources, 10 times more than were previously known; and more than 2,500 gamma-ray bursts.

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.

Russkii tekst
Based on Astronomy Picture Of the Day
Publikacii s klyuchevymi slovami: CGRO - gamma-izluchenie - orbital'naya observatoriya im.Komptona - gamma ray
Publikacii so slovami: CGRO - gamma-izluchenie - orbital'naya observatoriya im.Komptona - gamma ray
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