/r/askscience

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Why are rockets/ spacecraft corrosion resistant, if there is no oxygen in space?

1807 upvotes • owenbananaman

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Where does all the salt eventually go that we put on roads in the winter?

1806 upvotes • umichscoots

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What is the largest feasible size of space station that could currently be put into orbit and maintained?

1806 upvotes • [deleted]

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What is the limit to space propulsion systems? why cant a spacecraft continuously accelerate to reach enormous speeds?

1805 upvotes • Challenn

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What stops light from going faster?

1804 upvotes • TheFalseComing

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Does a solar panel receive as much energy on a hot sunny day than on a cold sunny day?

1804 upvotes • O_JohnnyBravo_O

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If we look billions of light years into the distance, we are actually peering into the past? If so, does this mean we have no idea what distant galaxies actually look like right now?

1803 upvotes • brenan85

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Is it possible to trap light in a hollow ball whose inside is made out of mirror?

1802 upvotes • BananaBladeOfDoom

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What do you catabolize first during starvation: muscle, fat, or both in equal measure?

1802 upvotes • strong_grey_hero

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What makes fish smell like fish?

1802 upvotes • bitch-ass_ho

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Title	Upvotes	Author	Mark as read	Favorited	Rating	Add to a list
Why are rockets/ spacecraft corrosion resistant, if there is no oxygen in space?	1807	owenbananaman
Where does all the salt eventually go that we put on roads in the winter?	1806	umichscoots
What is the largest feasible size of space station that could currently be put into orbit and maintained?	1806	[deleted]
What is the limit to space propulsion systems? why cant a spacecraft continuously accelerate to reach enormous speeds?	1805	Challenn
What stops light from going faster?	1804	TheFalseComing
Does a solar panel receive as much energy on a hot sunny day than on a cold sunny day?	1804	O_JohnnyBravo_O
If we look billions of light years into the distance, we are actually peering into the past? If so, does this mean we have no idea what distant galaxies actually look like right now?	1803	brenan85
Is it possible to trap light in a hollow ball whose inside is made out of mirror?	1802	BananaBladeOfDoom
What do you catabolize first during starvation: muscle, fat, or both in equal measure?	1802	strong_grey_hero
What makes fish smell like fish?	1802	bitch-ass_ho