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Why does flu even come in seasons?

3400 upvotes • thetimujin

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Why are Geese still flying south in the middle of winter?

3399 upvotes • niqomi

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Is there any evidence that cetacean species communicate to each other (like grey whales calling and blue whales avoiding an area, etc)? Or are all of these species shouting past each other on different wavelengths?

3396 upvotes • Prufrock451

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Can you have concussive force in space?

3395 upvotes • GhaznaviRambo

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Why is it on hot summer nights the temperature only cools down briefly at the break of Dawn? It seems counterintuitive. Why would it get cooler just as the sun is rising?

3395 upvotes • lacks_imagination

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If E = MC^2 then why does a photon contain energy?

3394 upvotes • FanticalZappy

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If mRNA vaccines remain proven safe, is it actually necessary to go through new trials each time when vaccinating for a new strain or another disease?

3394 upvotes • CyKii

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If we take all of the world's CO2 emissions and compressed it to a diamond, how big would it be?

3393 upvotes • ForeverKidd

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Why are some surfaces erasable after use of dry-erase (non-permanent) markers while some are not?

3393 upvotes • pon_den

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AskScience AMA Series: I am Scott Solomon, evolutionary biologist, science writer, and university professor, out with a new book on predicting the evolutionary future of humans. Ask Me Anything!

3392 upvotes • AskScienceModerator

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Title	Upvotes	Author	Mark as read	Favorited	Rating	Add to a list
Why does flu even come in seasons?	3400	thetimujin
Why are Geese still flying south in the middle of winter?	3399	niqomi
Is there any evidence that cetacean species communicate to each other (like grey whales calling and blue whales avoiding an area, etc)? Or are all of these species shouting past each other on different wavelengths?	3396	Prufrock451
Can you have concussive force in space?	3395	GhaznaviRambo
Why is it on hot summer nights the temperature only cools down briefly at the break of Dawn? It seems counterintuitive. Why would it get cooler just as the sun is rising?	3395	lacks_imagination
If E = MC^2 then why does a photon contain energy?	3394	FanticalZappy
If mRNA vaccines remain proven safe, is it actually necessary to go through new trials each time when vaccinating for a new strain or another disease?	3394	CyKii
If we take all of the world's CO2 emissions and compressed it to a diamond, how big would it be?	3393	ForeverKidd
Why are some surfaces erasable after use of dry-erase (non-permanent) markers while some are not?	3393	pon_den
AskScience AMA Series: I am Scott Solomon, evolutionary biologist, science writer, and university professor, out with a new book on predicting the evolutionary future of humans. Ask Me Anything!	3392	AskScienceModerator