r/spacequestions
Activespacequestions: for all your questions about space
SpaceQuestions is a subreddit for asking questions about astronomy, rocketry, astrophysics and cosmology. We welcome everyone to post questions to satisfy their curiosity and further their scientific understanding. Our most common questioners fit into two categories: the scientifically curious, and fiction authors wanting to add realism into their stories. Please be courteous in your replies and help everyone to learn more about space together.
Members
7,739
as of February 2025
Last post
today
September 28, 2026
Posts (30 days)
70
Created
2013
October 14, 2013
Total posts
2.1K
archived
Total comments
17.0K
archived
Is r/spacequestions dead? Active community.
r/spacequestions is posting regularly — the latest post was today. Active subreddits can't be requested through r/redditrequest.
Find abandoned subreddits in this niche you can claim →r/spacequestions activity over the last year
New posts per month.
Frequently asked questions about r/spacequestions
How many members does r/spacequestions have?
r/spacequestions had 7,739 members as of February 2025, the most recent archive crawl of its subscriber count.
Is r/spacequestions dead?
No. r/spacequestions is active — the most recent post was today, with 70 posts in the last 30 days.
When was r/spacequestions created?
r/spacequestions was created on October 14, 2013.
Can I take over r/spacequestions?
Probably not. r/spacequestions is still in active use, and Reddit only hands over communities whose human moderators have all gone inactive on Reddit for 60+ days. If you want a community in this niche, look for abandoned subreddits on the same topic instead — DeadSubs finds them automatically.
Want your own subreddit with a built-in audience?
Thousands of subreddits like r/spacequestions have been abandoned by their moderators. DeadSubs finds the ones you can claim.
Activity checked September 28, 2026from the Arctic Shift Reddit archive. Member counts come from the archive's most recent crawl and may lag Reddit. DeadSubs is not affiliated with Reddit Inc.