Didier Authier

Didier Authier

Didier Authier
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How the solar system actually travels through the galaxy

How the solar system actually travels through the galaxy

Modern humans have existed for approximately four seconds. From the The Science Magpie, via AsapSCIENCE.

Modern humans have existed for approximately four seconds. From the The Science Magpie, via AsapSCIENCE.