SubTrends
Other

Averages 17 posts/day, top 10% activity. Most active Tuesdays around 10 AM UTC. Mostly image posts (99%).

Posts / Day Average posts per day this month. Arrow is change vs the prior calendar month.
17 7%
Avg Upvotes Mean net upvotes per post this month (upvotes minus downvotes). Arrow is change vs the prior month.
1.1K 6%
Avg Comments Mean number of comments per post this month. Arrow is change vs the prior month when that month’s data is available.
25 33%
Activity Rank #9,023 by posts/day among 90,883 tracked SFW subreddits as of Sep 2026 (Top 10%). Arrow is spots gained or lost vs the prior month.
#9,023 506
Top 10%
Posts w/ Links The percentage of posts that link off-site. This counts true link posts plus text posts with a URL in the body. Image and video posts are not counted.
1%
Low-Reply Rate Share of posts with 0 or 1 comment. A single comment is often an automated mod reply rather than real community discussion.
34%

r/spaceporn Traffic & Engagement

Volume and engagement over time

Posts/DayAvg Upvotes010203001k2k3k4kSep 1Sep 8Sep 15Sep 22Sep 29
Posts/Day Avg Upvotes Mean net upvotes per post in this bucket.

Post Format

Top Post Type Image
Typical Title Length Short (62 chars)
Peak Day Thursday

Upvote Distribution

How upvoted posts perform Only posts with 2+ upvotes. The bands below show how those posts are spread by upvote count.

2–9
2%
10–99
24%
100–999
49%
1K+
25%
Posts that get upvoted Share of posts that received at least one upvote (2+ net upvotes). Most posts at 1 upvote are excluded. 89%
Median upvoted post Median upvotes among posts that received upvotes. Differs from Avg Upvotes in the snapshot, which includes every post. 298
Top post Highest upvote count on a single post this month. 32.0K

r/spaceporn Most Active Times

Peak posting by day and hour (UTC)

Sun
Mon
Tue
Wed
Thu
Fri
Sat
12 AM
1 AM
2 AM
3 AM
4 AM
5 AM
6 AM
7 AM
8 AM
9 AM
10 AM
11 AM
12 PM
1 PM
2 PM
3 PM
4 PM
5 PM
6 PM
7 PM
8 PM
9 PM
10 PM
11 PM
← Swipe →
#1 Top 3 activity windows

Most Active by Day

Sun 8 AM
Mon 3 PM
Tue 10 AM
Wed 9 AM
Thu 6 AM
Fri 6 AM
Sat 10 PM

r/spaceporn Flair Performance

Upvotes and volume by flair

Flair Posts Upvotes
Related Content99 (20.1%)1.5K
Amateur/Processed96 (19.5%)841
Pro/Processed84 (17.1%)1.8K
NASA70 (14.2%)1.5K
Amateur/Composite32 (6.5%)297
Art/Render29 (5.9%)106
Amateur/Unedited29 (5.9%)256
James Webb22 (4.5%)797
Hubble16 (3.3%)393
Artist Depiction8 (1.6%)210

Post Type Breakdown

Share by text, image, or link

99%image posts

r/spaceporn Trending Keywords

Ranked by how often they appear

KeywordMentions ▼UpvotesComments
nebula
62 (12.6%)
2763
space
49 (9.9%)
92624
moon
42 (8.5%)
1.6K22
years
32 (6.5%)
2.1K48
image
28 (5.7%)
2.5K28
seen
26 (5.3%)
1.1K20
way
24 (4.9%)
1.1K18
mars
24 (4.9%)
76213
milky
23 (4.7%)
95116
today
22 (4.5%)
2.8K68

r/spaceporn Mentioned Domains

Most linked sites

This community doesn't link off-site.

Its posts are text, images, or discussion rather than outbound links.

r/spaceporn Top Posts

Highest-performing posts

r/spaceporn Audience Overlap

Overlapping audiences

r/spaceporn FAQ

What's the best time to post on r/spaceporn?

Based on posting volume, r/spaceporn is most active on Tuesdays around 10 AM UTC. That window has the most community activity, but busier hours also mean more competition for attention.

How active is r/spaceporn?

r/spaceporn averages 17 posts per day and ranks in the top 10% for activity among tracked SFW subreddits.

How many upvotes do posts on r/spaceporn get?

Posts on r/spaceporn average about 1,082 upvotes this month (net score per post).

What kind of posts does r/spaceporn get most?

On r/spaceporn, most posts are image posts (99%)