r/astrophysics

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r/Physics
887k  subs
The aim of /r/Physics is to build a subreddit frequented by physicists, scientists, and those with a passion for physics. Papers from physics journals (free or otherwise) are encouraged. Posts should be pertinent, meme-free, and generate a discussion about physics. Please report trolls and intentionally misleading comments.
https://reddit.com/r/Physics/
r/Astronomy
944k  subs
The amateur hobby of man since the dawn of time and scientific study of celestial objects.
https://reddit.com/r/Astronomy/
r/askscience
18m  subs
Ask a science question, get a science answer.
https://reddit.com/r/askscience/
r/AskPhysics
33k  subs
A subreddit to draw simple physics questions away from /r/physics. No real rules; ask away. If your basic physics question isn't answered in a day, you can post it to /r/physics if you mention that you didn't get an answer on /r/AskPhysics (unless it's a homework-related physics question).
https://reddit.com/r/AskPhysics/
r/cosmology
31k  subs
**/r/cosmology** - a community for questions, discussions, and articles about cosmology.
https://reddit.com/r/cosmology/
Love pictures of interstellar objects taken by amateurs? /r/Astrophotography is the place for you!
https://reddit.com/r/astrophotography/
r/askastronomy
15k  subs
Direct your astronomy related questions here! (Please read our subreddit rules first!) Rules: https://www.reddit.com/r/askastronomy/about/rules Have a hobby-level telescope question? See /r/telescopes!
https://reddit.com/r/askastronomy/
r/space
16m  subs
Share & discuss informative content on: * Astrophysics * Cosmology * Space Exploration * Planetary Science * Astrobiology
https://reddit.com/r/space/
r/nasa
681k  subs
r/NASA is for anything related to the National Aeronautics and Space Administration; the latest news, events, current and future missions, and more.
https://reddit.com/r/nasa/
r/spaceporn
816k  subs
SpacePorn is a subreddit devoted to high-quality images of space. As long as the focus of the image is of the stars or related to space in some way then it is allowed. This includes artwork as well as photography.
https://reddit.com/r/spaceporn/
r/learnmath
135k  subs
Post all of your math-learning resources here. Questions, no matter how basic, will be answered (to the best ability of the online subscribers).
https://reddit.com/r/learnmath/
A place for physics students to talk about whatever!
https://reddit.com/r/PhysicsStudents/
r/scifi
1m  subs
Science Fiction, or Speculative Fiction if you prefer. Fantasy too. Asimov, Bradbury, Clarke, Dick, Heinlein and other SF books. SF movies and TV shows. Fantasy stuff like Tolkien and Game of Thrones. Laser guns, space ships, and time travel. etc. Star Trek, Battlestar, Star Wars, etc.
https://reddit.com/r/scifi/
Reddit's new look is shit. Revert back to classic.
https://reddit.com/r/shittyaskscience/
r/atheism
2m  subs
Welcome to r/atheism, the web's largest atheist forum. All topics related to atheism, agnosticism and secular living are welcome here.
https://reddit.com/r/atheism/
r/astrophys
4k  subs
Astrophysics - Cosmology - Space
https://reddit.com/r/astrophys/
r/physicsmemes
46k  subs
Pretty much exactly what it sounds like.
https://reddit.com/r/physicsmemes/
Here you can ask any question you have about being a scientist, what's new in a field, what's going to happen in a field, or are curious about how we got to this point.
https://reddit.com/r/AskScienceDiscussion/
r/chemistry
715k  subs
A community for chemists and those who love chemistry
https://reddit.com/r/chemistry/
r/science
22m  subs
This community is a place to share and discuss new scientific research. Read about the latest advances in astronomy, biology, medicine, physics, social science, and more. Find and submit new publications and popular science coverage of current research.
https://reddit.com/r/science/
r/reddit.com
818k  subs
The original subreddit, now archived.
https://reddit.com/r/reddit.com/
The Kerbal Space Program subreddit. For all your gaming related, space exploration needs. http://kerbalspaceprogram.com
https://reddit.com/r/KerbalSpaceProgram/
A subreddit for all questions related to programming in any language.
https://reddit.com/r/learnprogramming/
r/bestof
5m  subs
The very best comments on reddit.
https://reddit.com/r/bestof/