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If I shot a gun from the edge of the atmosphere towards the earth, would the bullet increase in speed as it travels or slow down to a 'terminal velocity'?

475 upvotes • _tedcunterblast

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If the earth wasn't tilted would we still get seasons?

475 upvotes • Unlegitsy

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When you look at the Milky Way, what are the enormous black clouds that seem to obscure the center of our galaxy?

475 upvotes • arsenalwilson

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AskScience AMA Series: Cosmology experts are here to talk about our projects. Ask Us Anything!

475 upvotes • AskScienceModerator

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Why are the cracks on glass opaque?

475 upvotes • nanaro10

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AskScience AMA Series: We are paleontologists here to talk about Dakota the Dinosaur Mummy, AUA!

475 upvotes • AskScienceModerator

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Animals, e.g. (wild) cats, have loads of anonymous sex and know nothing about protection or medicine. Why aren't they decimated by cat aids?

474 upvotes • whalabi

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Why do our hair colors change (greying/white hair) when we grow older or are stressed?

474 upvotes • PandaZhou

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About that large aquifer discovered in Kenya recently - could similar undiscovered aquifers exist anywhere in the world? If not, what areas remain unexplored?

474 upvotes • Thompson_S_Sweetback

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If I were to 'mark' a blood cell leaving the heart, how long would it take to reach the heart again?

474 upvotes • AntisocialUshanka

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Title	Upvotes	Author	Mark as read	Favorited	Rating	Add to a list
If I shot a gun from the edge of the atmosphere towards the earth, would the bullet increase in speed as it travels or slow down to a 'terminal velocity'?	475	_tedcunterblast
If the earth wasn't tilted would we still get seasons?	475	Unlegitsy
When you look at the Milky Way, what are the enormous black clouds that seem to obscure the center of our galaxy?	475	arsenalwilson
AskScience AMA Series: Cosmology experts are here to talk about our projects. Ask Us Anything!	475	AskScienceModerator
Why are the cracks on glass opaque?	475	nanaro10
AskScience AMA Series: We are paleontologists here to talk about Dakota the Dinosaur Mummy, AUA!	475	AskScienceModerator
Animals, e.g. (wild) cats, have loads of anonymous sex and know nothing about protection or medicine. Why aren't they decimated by cat aids?	474	whalabi
Why do our hair colors change (greying/white hair) when we grow older or are stressed?	474	PandaZhou
About that large aquifer discovered in Kenya recently - could similar undiscovered aquifers exist anywhere in the world? If not, what areas remain unexplored?	474	Thompson_S_Sweetback
If I were to 'mark' a blood cell leaving the heart, how long would it take to reach the heart again?	474	AntisocialUshanka