Rare footage of the southern lights
September 29th 2011 23:52
They may have to wait a while before returning home, but in the meantime the astronauts aboard the International Space Station must be having a ball. Check out this video shot from the ISS of the Aurora Australis.
Many aurora appear green, such as the accompanying image. But the colors also depend on which atoms cause the light that's being generated by a particular aurora. In this Sept. 26, 2011 image, for instance, lower-energy oxygen collisions as well as collisions with nitrogen atoms produce red photons -- resulting in an aurora with a red band.
Author: CBSNews (Hidden Byline)
Credit: NASA Goddard Space Flight Center
CBS
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