/r/askscience

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If a star is 30 light years away from Earth, is the light entering my eyes right now actually 30 years old, and is the star actually in that actual physical location right now or was it there 30 years ago?

1023 upvotes • SeriouslyLaughing

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After a jet breaks the sound barrier, does the cockpit become significantly quieter?

1022 upvotes • gillisthom

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Why are flies so attracted to feces? What attracts them to it? Is it... nutritious?

1022 upvotes • Antranik

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Why are there little holes in the metal prongs of power adapters?

1022 upvotes • CherryTheScrublord

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What would happen if the North Star goes Supernova?

1021 upvotes • humpblack

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If a woman has slept with identical twins during the same time period, and becomes pregnant, is it possible for her to tell who the father is?

1020 upvotes • HowToPaintWithFerret

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Is there any correlation between LTR and RTL languages and the dominate handedness of that language's creator or culture?

1020 upvotes • JpDeathBlade

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Does the aurora borealis make a sound since something hitting the atmosphere?

1020 upvotes • Pickerington

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Is there any evidence that constantly waking up in a panic (such as a loud alarm) is more detrimental in the long run to one's health than waking up more "peacefully" or "naturally"?

1019 upvotes • AlphaMarshan

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How is Bitcoin secure?

1019 upvotes • hamolton

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Title	Upvotes	Author	Mark as read	Favorited	Rating	Add to a list
If a star is 30 light years away from Earth, is the light entering my eyes right now actually 30 years old, and is the star actually in that actual physical location right now or was it there 30 years ago?	1023	SeriouslyLaughing
After a jet breaks the sound barrier, does the cockpit become significantly quieter?	1022	gillisthom
Why are flies so attracted to feces? What attracts them to it? Is it... nutritious?	1022	Antranik
Why are there little holes in the metal prongs of power adapters?	1022	CherryTheScrublord
What would happen if the North Star goes Supernova?	1021	humpblack
If a woman has slept with identical twins during the same time period, and becomes pregnant, is it possible for her to tell who the father is?	1020	HowToPaintWithFerret
Is there any correlation between LTR and RTL languages and the dominate handedness of that language's creator or culture?	1020	JpDeathBlade
Does the aurora borealis make a sound since something hitting the atmosphere?	1020	Pickerington
Is there any evidence that constantly waking up in a panic (such as a loud alarm) is more detrimental in the long run to one's health than waking up more "peacefully" or "naturally"?	1019	AlphaMarshan
How is Bitcoin secure?	1019	hamolton