This striking satellite photo shows 10 swirling "dark voids" that appeared above an uninhabited volcanic island in the Indian Ocean. The black spots are the result of atmospheric cloud vortices, but ...
Have you ever wondered why the night sky is dark? Doesn’t seem like much of a brainteaser, does it? Everyone knows the sky darkens at night because the sun sets … or more accurately, because our part ...
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Why Is the Night Sky Dark?
Have you ever wondered why the night sky is dark? Doesn't seem like much of a brainteaser, does it? Everyone knows the sky darkens at night because the sun sets ... or more accurately, because our ...
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