Explanation: Solar flares are propelled high above the Sun's surface by powerful, twisted magnetic fields. The flares spew high energy atomic and subatomic particles into space. During an intense solar flare on June 15, 1991, a spray of solar neutrons was detected by the COMPTEL instrument onboard NASA's Compton Gamma Ray Observatory. Like paint from a spray can, the neutrons formed the above image (seen in false color) on the COMPTEL detectors. Such astronomical images made by high energy particles are unusual, astronomers typically use visible light and other forms of electromagnetic radiation to study the Universe. High energy particles from solar flares affect the Earth and near Earth environment so solar activity is constantly monitored.

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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.

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