When we look at the night sky, how far back in time can we see?

The time for light from objects in space to reach Earth means that when we look at planets, stars and galaxies, we

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When we look at the night sky, how far back in time can we see?

How far back are we looking in time?

Why Do People Look Into Space With Telescopes But Not Binoculars?

When we look at the night sky, how far back in time can we see?, in time

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If cameras were first invented in 1816, then how were the pictures of the Galaxy taken millions of years before that? - Quora