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Fountains of Fire
Earth in Perspective

Fountains of Fire and Earth
Fountains of Fire and Earth
Item# S0001E
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Product Description

Earth has been inserted into this false composite to illustrate the vast scale of this Coronal Loop.

Giant fountains of fast-moving, multimillion-degree gas in the outermost atmosphere of the Sun have revealed an important cluaze to a long-standing mystery -- the location of the heating mechanism that makes the corona 300 times hotter than the Sun's visible surface.

Scientists discovered an important clue while observing immense coils of hot, electrified gas, known as coronal loops. These fiery, arching fountains now appear in unprecedented detail with NASA's Transition Region and Coronal Explorer (TRACE) spacecraft.

Scientists are interested in the corona, which appears as a halo of light seen by the unaided eye during a total solar eclipse, because eruptive events in this region can disrupt high-technology systems on Earth. Astronomers also hope to use the solar corona studies to better understand other stars.

Credit: TRACE is a mission of the Stanford-Lockheed Institute for Space Research, and a part of the NASA Small Explorer program