1
By TED-Ed
Published in 2013
Why do we see those stunning lights in the northern- and southernmost portions of the night sky? The Aurora Borealis and Aurora Australis occur when high-energy particles are flung from the Sun's corona toward the Earth and mingle with the neutral atoms in our atmosphere -- ultimately emitting...
Grade Level   3 4 5 6 7 8 9 10 11 12
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2
Published in 2015
In 1959 the Soviet Space Craft Luna 3 beamed back images of something earthlings have never before seen, the far side of the moon.” Watch the You Tube video to learn more about the moon and to learn why earth can only see one side.
Grade Level   K 1 2 3 4 5 6 7 8 9 10 11 12
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