- Subscribers
- 5,850,917
- Average Upvotes
- 499.5
- Average Comments
- 39.7
- Min. Upvotes to HOT
- 2
r/nasa
Best Time to Post on r/nasa (UTC TIME)
r/nasa peaks Sundays 5pm-7pm UTC
nasa Subscriber Count - redditli.st
About r/nasa
r/nasa was created on July 17, 2008, making it 17 years and 9 months old and one of the earliest subreddits on Reddit. With 5,850,917 members, this is a large and well-established subreddit with significant reach and influence on Reddit.
r/nasa is steadily growing, with 29,424 new members in the last 30 days.
r/nasa functions as a central hub for public engagement with the United States' civilian space agency, distinguished by significant activity levels averaging 183.9 upvotes and 22.8 comments per post within its vast community of 5,818,987 members. This high volume of upvotes relative to comments indicates broad interest and passive consumption of content, reflecting the subreddit's role as a primary news source rather than a deep discussion forum. Peak activity occurs Sundays between 8pm-10pm UTC, suggesting a global audience tuning in during weekend evenings for updates. The community serves as the de facto online destination for official NASA mission news, imagery, event announcements, and agency-related developments, fostering a culture centered on celebration, education, and public support for space exploration.
Content within r/nasa is predominantly curated and authoritative, featuring high-resolution images from missions like James Webb or Hubble, official press releases, live coverage links for launches and landings, updates on current missions (e.g., Artemis, Perseverance rover), and educational material from NASA's various divisions. Original posts by members are less common and typically restricted to sharing officially released media or verifiable news; speculative discussions or unverified claims are generally moderated out. The overall vibe is overwhelmingly positive and awe-inspired, emphasizing the inspirational and scientific achievements of the agency. While critical discourse about budgets or policy occasionally surfaces, the dominant tone is one of communal enthusiasm and appreciation for space exploration, creating a welcoming space for shared wonder rather than contentious debate.
What sets r/nasa apart is its unparalleled proximity to the source institution. NASA employees, including scientists and engineers, frequently participate in AMAs (Ask Me Anything), and the subreddit often receives direct input or content from official NASA social media channels, lending it significant credibility. This near-official status makes it uniquely valuable for subscribers seeking timely, accurate information straight from the agency's output stream, bypassing media interpretation. It functions less as an analytical forum and more as a vital public dissemination channel. The ideal subscriber is a space enthusiast, educator, student, or curious observer seeking reliable updates and stunning visuals without requiring technical expertise; it equally serves dedicated followers and passive lurkers who appreciate effortless access to humanity's collective exploration of space, all within a consistently positive and informative environment.
r/nasa Engagement Analysis
r/nasa shows typical engagement for a community of this scale, with an average of 499.5 upvotes per post across its 5,850,917 members. The community is primarily content-consumption focused, with a comment-to-upvote ratio of 0.08. To reach the Hot section of r/nasa, posts typically need at least 2 upvotes, reflecting the community's activity level.
Posts on r/nasa receive an average of 39.7 comments, indicating a community that primarily engages through upvoting content. Posts tend to be appreciated more through voting than through discussion in the comments.
r/nasa Posting Patterns Analysis
Based on an analysis of 85 top posts from the past week, Sunday is the most active day with 24 posts reaching the top, while Friday sees the least activity with 8 posts. Weekend activity tends to outpace weekdays, suggesting a more leisure-oriented community.
The peak posting hours are around 5pm UTC (7 posts), 6pm UTC (7 posts), and 11pm UTC (6 posts). The quietest hours are 10am UTC, 12pm UTC, and 9am UTC, with only 1-1 posts each reaching the top during these times.
Weekly breakdown: Monday (16), Tuesday (9), Wednesday (9), Thursday (10), Friday (8), Saturday (9), Sunday (24) posts reaching the top.
r/nasa Growth Analysis
r/nasa currently has 5,850,917 subscribers. Over the past 30 days, the community has grown by 29,424 members (0.51%), averaging 949 new subscribers per day. This growth rate places r/nasa in the top 9% of all tracked subreddits.
Over the past 90 days, r/nasa has gained 40,403 subscribers (0.7%). Since tracking began 618 days ago, the community has added 846,425 total subscribers. The recent growth rate is consistent with the community's longer-term trajectory.
r/nasa Milestones
- Fastest growth period: +100,230 subscribers Jan 2025
r/nasa Growth Trend
r/nasa is steadily growing, with 29,424 new members in the last 30 days.
Frequently Asked Questions
How many subscribers does r/nasa have?
r/nasa has 5,850,917 subscribers as of April 2026.
What is the best time to post on r/nasa?
The best time to post on r/nasa is Sundays 5pm-7pm UTC, based on analysis of top-performing posts from the past week.
Is r/nasa growing?
r/nasa is steadily growing, with 29,424 new members in the last 30 days.
When was r/nasa created?
r/nasa was created on July 17, 2008, making it 17 years old.
How many upvotes do you need to reach Hot on r/nasa?
Posts on r/nasa typically need at least 2 upvotes to reach the Hot section.
r/nasa Key Statistics Summary
r/nasa is a Reddit community with 5,850,917 subscribers. The community describes itself as: "r/NASA is for anything related to the National Aeronautics and Space Administration; the latest news, events, current and future missions, and more." The best time to post on r/nasa is Sundays 5pm-7pm UTC. Posts receive an average of 499.5 upvotes and 39.7 comments. The minimum upvotes needed to reach the Hot section is approximately 2. The subreddit is adding approximately 949 new members each day. Founded 17 years ago, r/nasa is tracked and analyzed by RedditList as part of its comprehensive database of over 106,350 subreddits.
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Last updated: 2026-04-18 19:34:55