/u/southseattle77's posts in /r/askscience

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So space is expanding, right? But is it expanding at the atomic level or are galaxies just spreading farther apart? At what level is space expanding? And how does the Great Attractor play into it?

2677 upvotes

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Under what conditions could an astronaut fall safely to earth from above our atmosphere?

1 upvotes

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Could you dangle a long enough straw from a satellite (or some orbiting thing) and effectively suck the air on earth out into space?

1 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
So space is expanding, right? But is it expanding at the atomic level or are galaxies just spreading farther apart? At what level is space expanding? And how does the Great Attractor play into it?	2677
Under what conditions could an astronaut fall safely to earth from above our atmosphere?	1
Could you dangle a long enough straw from a satellite (or some orbiting thing) and effectively suck the air on earth out into space?	1