Lights Out: Why does it get dark at night? The answer might be more complicated than you think.
[gizmodo]
I think my head just exploded.
this is absolutely amazing. oh my god.
WHAT
(Source: http://www.youtube.com/)
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Lights Out: Why does it get dark at night? The answer might be more complicated than you think.
[gizmodo]
I think my head just exploded.
this is absolutely amazing. oh my god.
WHAT