/r/askscience

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Only show posts with narrations

Why does looking through a tiny hole make things focus?

3560 upvotes • Zamboniman

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AskScience AMA Series: Hey Reddit! We are NASA scientists that study Earth systems, how they're changing, and how they impact our favorite foods. Ask us anything about agriculture, drought, and food security!

3560 upvotes • AskScienceModerator

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Could the conditions for life be different than ours in another part of the universe?

3559 upvotes • spicyitallian

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Is it possible to have 2 planets orbiting a sun in the goldilock zone?

3555 upvotes • Pehmizz

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Do we know when, in human evolution, menstruation appeared?

3555 upvotes • rasputinette

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Hi Reddit, I’m Margaret Leinen, here to talk about the world’s oceans and how we observe them. Ask Me Anything!

3554 upvotes • AmGeophysicalU-AMA

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What are the current limitations of desalination plants globally?

3554 upvotes • MrTigeriffic

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Why do coral reefs not grow in the Gulf of Mexico but thrive in areas like that of the Caribbean islands?

3552 upvotes • DoNotTrustMyWord

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How do we know how far away the planets are from the sun?

3551 upvotes • throwawayvae

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When the temperature of water goes down, does the surface tension increase?

3551 upvotes • Aquate_

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Title	Upvotes	Author	Mark as read	Favorited	Rating	Add to a list
Why does looking through a tiny hole make things focus?	3560	Zamboniman
AskScience AMA Series: Hey Reddit! We are NASA scientists that study Earth systems, how they're changing, and how they impact our favorite foods. Ask us anything about agriculture, drought, and food security!	3560	AskScienceModerator
Could the conditions for life be different than ours in another part of the universe?	3559	spicyitallian
Is it possible to have 2 planets orbiting a sun in the goldilock zone?	3555	Pehmizz
Do we know when, in human evolution, menstruation appeared?	3555	rasputinette
Hi Reddit, I’m Margaret Leinen, here to talk about the world’s oceans and how we observe them. Ask Me Anything!	3554	AmGeophysicalU-AMA
What are the current limitations of desalination plants globally?	3554	MrTigeriffic
Why do coral reefs not grow in the Gulf of Mexico but thrive in areas like that of the Caribbean islands?	3552	DoNotTrustMyWord
How do we know how far away the planets are from the sun?	3551	throwawayvae
When the temperature of water goes down, does the surface tension increase?	3551	Aquate_