Astronomy (55 subreddits)


Everything to do with Astronomy:

The amateur hobby of man since the dawn of time and scientific study of celestial objects.

  • 190,536 subscribers
  • A community for 9 years

/r/SpaceX, the premier spaceflight community

The largest fan-run discussion board on the American aerospace company SpaceX. This board is not an official outlet for SpaceX information.

  • 156,922 subscribers
  • A community for 6 years

Amateur Astrophotography

A subreddit for Redditors who wish to share astronomical images they have taken.

  • 99,709 subscribers
  • A community for 7 years


/r/NASA is for anything related to the National Aeronautics and Space Administration, the latest news, events, current mission and future missions and more.

space NASA

  • 86,736 subscribers
  • A community for 9 years


/r/cosmology - a community for questions, discussions, and articles about cosmology.

  • 20,439 subscribers
  • A community for 8 years

NASA's Mars Curiosity Rover

A subreddit to follow the progress of NASA's Curiosity Rover on Mars.

  • 19,438 subscribers
  • A community for 5 years

The Mars Subreddit

No description available.

  • 11,254 subscribers
  • A community for 9 years

A subreddit for amateur/practicing astronomers

No description available.

  • 9,199 subscribers
  • A community for 8 years

Ask Astronomy

Direct your astronomy related questions here!

Our panelists will do the best to answer your questions.

Interested in being a panelist? PM the moderators with your credentials in astronomy.

  • 7,466 subscribers
  • A community for 4 years

Landscape Astrophotography

Images, discussion, questions, gear and all things related to Landscape Astrophotography

  • 6,102 subscribers
  • A community for 3 years
All Topics
Adult and NSFW NSFW Architecture Art Business Education Entertainment Gaming General Hobbies and Interests Law Lifestyle Locations Meta Music News and Politics Science Social Science and Humanities Sports Technology Travel Other