r/askscience

1.9M archived posts · Apr 2010 – Sep 2026

AskScience: Got Questions? Get Answers.

r/askscience

Ask a science question, get a science answer.

Created Sep 5, 2008

26MMembers (last snapshot)

1.9MArchived posts

Answer questions with accurate, in-depth explanations, including peer-reviewed sources where possible
Upvote on-topic answers supported by reputable sources and scientific research
Downvote anecdotes, speculation, and jokes
Report comments that do not meet our guidelines, including medical advice
Be civil: Remember the human and follow Reddiquette

###Features

Title	Description
Physics	Theoretical Physics, Experimental Physics, High-energy Physics, Solid-State Physics, Fluid Dynamics, Relativity, Quantum Physics, Plasma Physics
Mathematics	Mathematics, Statistics, Number Theory, Calculus, Algebra
Astronomy	Astronomy, Astrophysics, Cosmology, Planetary Formation
Computing	Computing, Artificial Intelligence, Machine Learning, Computability
Earth and Planetary Sciences	Earth Science, Atmospheric Science, Oceanography, Geology
Engineering	Mechanical Engineering, Electrical Engineering, Structural Engineering, Computer Engineering, Aerospace Engineering
Chemistry	Chemistry, Organic Chemistry, Polymers, Biochemistry
Social Sciences	Social Science, Political Science, Economics, Archaeology, Anthropology, Linguistics
Biology	Biology, Evolution, Morphology, Ecology, Synthetic Biology, Microbiology, Cellular Biology, Molecular Biology, Paleontology
Psychology	Psychology, Cognitive Psychology, Developmental Psychology, Abnormal, Social Psychology
Medicine	Medicine, Oncology, Dentistry, Physiology, Epidemiology, Infectious Disease, Pharmacy, Human Body
Neuroscience	Neuroscience, Neurology, Neurochemistry, Cognitive Neuroscience

###Calendar

Date	Description
15 Feb	Galileo's Birthday (b.1564)
19 Feb	Ask Anything Wednesday - Economics, Political Science, Linguistics, Anthropology
25 Feb	AskScience AMA Series: Dr. Ron Gamble, Black Holes
26 Feb	Ask Anything Wednesday - Physics, Astronomy, Earth and Planetary Science
5 Mar	Ask Anything Wednesday - Engineering, Mathematics, Computer science
8 Mar	International Women's Day
12 Mar	AskScience AMA Series: Dr. Anne Simon, Citrus Greening
12 Mar	Ask Anything Wednesday - Biology, Chemistry, Neuroscience, Medicine, Psychology
14 Mar	Albert Einstein's Birthday
14 Mar	Pi Day

###Related subreddits

We make our world significant by the courage of our questions and by the depth of our answers. -Carl Sagan, Cosmos

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