Astronomy is the universe looking back at itself
When you see the sun, you’re seeing it as it was eight minutes ago, and the faintest star yet observed, Earendel, shines from 12.9 billion years in the past. Astronomer Michelle Thaller, who spent 28 years at NASA, explains how every telescope is a time machine and how gravity itself bends space into natural lenses that let us peer to the dawn of the universe. This video Astronomy is the universe…
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