akemiiwaya at June 23rd, 2014 13:20 — #1
Originally published at: http://www.howtogeek.com/192078/what-causes-auroras/
Auroras are quite stunning to behold, but why and how do they happen? Learn what makes these phenomenal wonders of the sky possible in today’s video from SciShow!
system at July 3rd, 2014 13:20 — #2
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