/r/askscience - top ten submissions for each month of 2025
sfw subreddits
| <<
askscience 2024
2025, June
475 Why do coral reefs only grow in warm shallow wa...
328 Atmospheric oxygen levels in the Carboniferous ...
288 How many times did two-eyed animals evolve?
216 Why can’t we divide by zero (on an arbitrary fi...
194 What happens when we say muscle strain?
180 How long through our sleep, do we start dreaming ?
147 Would 2 pounds of muscle from different animals...
66 If blood clots slower underwater, would fish he...
54 Do photons speed change with their wavelength?
2025, May
427 Does the sugar content of fruit change during r...
261 Why don't more vaccines exist?
247 Where does the water between two convergent con...
164 Do misfolded prions always eventually result in...
86 Do the shorelines of continental plates always ...
65 Ask Anything Wednesday - Biology, Chemistry, Ne...
21 How does patient 0 contract lice or other infec...
10 How do dogs and cats use their sense of smell?
0 Okay, this is a weird one: if trees release CO?...
2025, April
274 How does too much of a vitamin cause toxicity i...
259 What are the Neurological Processes that Allow ...
12 Could a planet exist entirely covered in water,...
6 Why is it the Doppler shift frequency that coun...
1 For every inch taller you are or for each extra...
2025, March
573 Where does helium go once it escapes our atmosp...
569 Since shingles and chicken pox are caused by th...
308 What makes Denisovans different from Sapiens &a...
229 I can't understand how light gets "polarised" a...
137 Ask Anything Wednesday - Engineering, Mathemati...
136 Does the sun do damage to more than our skin ce...
129 If there was a large caldera capable of VEI 6+ ...
72 Why do fans cool down a room instead of heating...
71 When a meningioma is removed, what fills the hole?
2025, February
6544 If all the cells in your body are replaced ever...
2387 Why did basically all life evolve to breathe/us...
1061 For animals like salmon and sea turtles that an...
706 Why do (some) people lose hair as they get olde...
563 Why do AI images look the way they do?
431 Why does risk of Down’s syndrome increase with ...
395 What elements can replace iron in blood and sti...
390 If you had both a viral and bacterial infection...
330 AskScience AMA Series: I am a theoretical astro...
329 Does Bird Flu affect all birds? Emus to humming...
2025, January
1509 If teeth are bones, then why if you chip a toot...
1058 AskScience AMA Series: We just discovered the b...
1050 Do species with shorter lifespans evolve faster...
1017 Is destroying a whole flock of agricultural bir...
741 Is it possible to contain light, and if so, wou...
504 Can you have several illnesses in the same time...
369 What happens to plants on a cellular level when...
324 Are Bees Affected By Capsaicin Or No?
190 Do cephalopods know what they’re doing when the...
107 Have there been any innovations in the science ...