why is the sky dark at night?
— Sarafina Nance (@starstrickenSF) September 24, 2019
the answer is actually pretty complex & relies on some of the coolest parts of our Universe—the expansion of space-time, the speed of light, & the Big Bang.
let‘s dig in.
2019년 9월 26일 목요일
RT @starstrickenSF: why is the sky dark at night? the answer is actually pretty complex & relies on some of the coolest parts of our Universe—the expansion of space-time, the speed of light, & the Big Bang. let‘s dig in.
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