SubTrends
Other

Averages 5 posts/day, top 50% activity. Most active Tuesdays around 4 PM UTC. Mostly link posts (84%).

Posts / Day Average posts per day this month. Arrow is change vs the prior calendar month.
5 2%
Avg Upvotes Mean net upvotes per post this month (upvotes minus downvotes). Arrow is change vs the prior month.
38 25%
Avg Comments Mean number of comments per post this month. Arrow is change vs the prior month when that month’s data is available.
5 29%
Activity Rank #23,444 by posts/day among 90,883 tracked SFW subreddits as of Sep 2026 (Top 50%). Arrow is spots gained or lost vs the prior month.
#23,444 258
Top 50%
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.
86%
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.
77%

r/science2 Traffic & Engagement

Volume and engagement over time

Posts/DayAvg Upvotes0510150100200300Sep 1Sep 8Sep 15Sep 22Sep 29
Posts/Day Avg Upvotes Mean net upvotes per post in this bucket.

Post Format

Top Post Type Link
Typical Title Length Long (168 chars)
Peak Day Monday

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
45%
10–99
42%
100–999
14%
1K+
0%
Posts that get upvoted Share of posts that received at least one upvote (2+ net upvotes). Most posts at 1 upvote are excluded. 74%
Median upvoted post Median upvotes among posts that received upvotes. Differs from Avg Upvotes in the snapshot, which includes every post. 12
Top post Highest upvote count on a single post this month. 662

r/science2 Most Active Times

Peak posting by day and hour (UTC)

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Sat
12 AM
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← Swipe →
#1 Top 3 activity windows

Most Active by Day

Sun 1 AM
Mon 1 AM
Tue 4 PM
Wed 1 AM
Thu 6 PM
Fri 2 AM
Sat 2 PM

r/science2 Flair Performance

Upvotes and volume by flair

Flair Posts Upvotes
Peer Reviewed!5 (100.0%)12

Post Type Breakdown

Share by text, image, or link

84%link posts

r/science2 Trending Keywords

Ranked by how often they appear

KeywordMentions ▼UpvotesComments
scientists
40 (25.2%)
7615
first
21 (13.2%)
10716
nasa
19 (11.9%)
151
study
18 (11.3%)
406
years
15 (9.4%)
347
found
14 (8.8%)
323
may
14 (8.8%)
515
space
12 (7.5%)
4613
researchers
12 (7.5%)
1154
moon
12 (7.5%)
287

r/science2 Mentioned Domains

Most linked sites

Domain Links Upvotes
phys.org1234
whatifscience.in61
livescience.com5152
arstechnica.com528
cnn.com5136
sciencedaily.com5194
space.com468
youtube.com45
sciencealert.com4146
yahoo.com3128

r/science2 Top Posts

Highest-performing posts

'It is extremely rare to witness': Scientists record humpback whale mom grieving her stillborn calf in first-of-its-kind footage | Researchers captured footage of a female humpback whale repeatedly diving to make eye contact with her stillborn calf and lay next to its body on the seafloor.

662 upvotes 4 comments link Sep 21

Alcohol use has declined for the first time since Covid-19, with Gen Zers and millennials leading the charge

459 upvotes 118 comments link Sep 21

Astronomers Detect Radio Signals Coming Directly From an Exoplanet For The First Time | "We detect rapid, recurring, and highly circularly polarized bursts, as well as persistent emission, at frequencies of 0.85 to 3.5 GHz."

454 upvotes 44 comments link Sep 22

Interstellar solar sails hit a strange problem at 75% of light speed | Solar sails pushed by powerful lasers could reach incredible speeds, but relativity may eventually make the light itself work against them. At around 75% of the speed of light, scattered photons can begin creating drag.

404 upvotes 68 comments link Sep 2

Life uses 4 DNA letters. Scientists just made 8 work | Researchers at UC San Diego have demonstrated that a key cellular enzyme can read an 8-letter genetic alphabet. The finding brings scientists closer to building expanded genetic systems that could perform entirely new biological functions.

391 upvotes 30 comments link Sep 5

Scientists take major step toward building first elevator to space | A new super strong material could be the breakthrough needed to turn the century-old space dream into reality

233 upvotes 78 comments link Sep 6

Scientists Reveal What Could Happen if Yellowstone Erupted Now | A Yellowstone supereruption could set off a global survival crisis, with food shortages and damaged health systems extending the danger long after the initial blasts.

205 upvotes 55 comments link Sep 30

Fossilized eggs of the largest known dinosaurs have been unearthed in an unexpected place | "The most likely scenario is that these titanosaurs laid their eggs in mound nests made of vegetation and soil, where incubation heat came mostly from rotting plant material."

186 upvotes 4 comments link Sep 10

A shipping container falling off a cargo ship in 1992 spilled 28,000 rubber ducks and other bath toys into the Pacific, and oceanographers spent the next 20 years tracking where they washed ashore to map the world's ocean currents.

183 upvotes 3 comments link Sep 9

The extinct American 'cheetah' was not a cheetah after all | In a new study published in the journal Current Biology, researchers reveal that the extinct cat was more closely related to pumas. Some populations living near the Arctic preyed almost exclusively on fish.

160 upvotes 7 comments link Sep 8

r/science2 Audience Overlap

Overlapping audiences

r/science2 FAQ

What's the best time to post on r/science2?

Based on posting volume, r/science2 is most active on Tuesdays around 4 PM UTC. That window has the most community activity, but busier hours also mean more competition for attention.

How active is r/science2?

r/science2 averages 5 posts per day and ranks in the top 50% for activity among tracked SFW subreddits.

How many upvotes do posts on r/science2 get?

Posts on r/science2 average about 38 upvotes this month (net score per post).

What kind of posts does r/science2 get most?

On r/science2, most posts are link posts (84%)