Aurora Australis From Space #1 is a photograph by Nasa/science Photo Library which was uploaded on February 17th, 2021.
Aurora Australis From Space #1
Aurora Australis from space. View from the Space Shuttle Discovery of the Aurora Australis, or southern lights. Auroral displays are caused by... more
Title
Aurora Australis From Space #1
Artist
Nasa/science Photo Library
Medium
Photograph
Description
Aurora Australis from space. View from the Space Shuttle Discovery of the Aurora Australis, or southern lights. Auroral displays are caused by interactions between energetic charged particles from the Sun, and the Earth's atmosphere. Moving at 400-500 kilometres a second, the charged particles of the solar wind are drawn by Earth's magnetic field to the poles, where they collide with gas atoms and molecules, causing them to emit light. Green light is from oxygen atoms, faint red from nitrogen molecules. The displays can be hundreds of kilometres above the Earth. Image taken during mission STS-114 'Return to Flight'.
Uploaded
February 17th, 2021
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