Eli5: Shouldn’t light from distant stars and galaxies appear to be continuously blinking by tons of space debri constantly moving between it and us through the Billions or year?

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Hopefully the question makes sense. But it seems like we are always getting such great photos of these objects. You would think that one day you may be able to see a galaxy; while the next it may be completely obstructed by another object that is closer to earth but still thousands to millions of light years away.

In: Planetary Science

8 Answers

Anonymous 0 Comments

Space is extremely empty. The average density of the universe is 1 hydrogen atom per 3 cubic meters. Outside of small regions of dense gas (which do block our view of stars behind them) there’s basically nothing there to get in the way.

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