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r/HotScienceNews

Your go-to subreddit for the latest breakthroughs, discoveries, and exciting updates from the world of science. Founded 2020 · 78.3K members · links only

78.5K members. The best post we have captured here reached 8.5K upvotes, which works out to 108 per 1,000 members.

108peak upvotes per 1,000 members
78.5Kmembers
8.5Kbest post
1.4Kmost comments
496posts we track

Open r/HotScienceNews on Reddit ↗

What actually lands here

The mix of post types among everything we have captured. Posting a link where almost nothing but images lands is wasted effort, and this is the fastest way to see it.

100%
Link 100%

What the ceiling looks like

The biggest posts we have captured here. Links go to the original on Reddit.

Colon cancer now leading cause of cancer deaths under 50 in US. Three in four cases in under-50s are advanced stage at diagnosis, largely because scr…

↑ 8.5K 💬 708 link 2026

71% of Americans Say They’re Completely Exhausted | A CDC report shows that people are not feeling relaxed and restful in the United States.

↑ 7.1K 💬 436 link 2026

Patients with female doctors have a lower risk of death or serious complications, study finds. Researchers say the gap reflects real differences in c…

↑ 6.8K 💬 397 link 2026

A woman with late-stage Alzheimer's who hadn't spoken in 5 years received psilocybin. 19 hours later she was talking, recalling memories, and making …

↑ 6.7K 💬 127 link 2026

The largest cannabis study ever conducted found no evidence it helps anxiety, depression, or PTSD and warned it may be making all three worse

↑ 5.9K 💬 1.2K link 2026

Scientists found that the creatine supplement millions take for muscle gains is quietly raising brain energy levels and slowing early Alzheimer's cog…

↑ 5.8K 💬 277 link 2026

Scientists finally have a biological explanation for why long COVID patients lose motivation and can't think clearly. They scanned their brains and f…

↑ 5.4K 💬 654 link 2026

Scientists have known for decades that eating 25% less slows aging. A new study finally found the specific protein responsible, and blocking it works…

↑ 4.9K 💬 140 link 2026

Scientists are discovering that period blood may replace Pap smears, diagnose endometriosis with a home test strip, heal wounds twice as fast as regu…

↑ 4.6K 💬 163 link 2026

For 20 years, women were warned that hormone therapy raised their dementia risk. A study of 21,000 women just looked inside their autopsied brains an…

↑ 4.6K 💬 262 link 2026

Communities its size

Within four times the member count either way, so the comparison is fair. Sorted by upside.

r/HotScienceNews, in numbers

Answered from the posts ViralHunt holds from this community, not from Reddit's own about page.

What is r/HotScienceNews?
r/HotScienceNews describes itself this way: Your go-to subreddit for the latest breakthroughs, discoveries, and exciting updates from the world of science. It was founded in 2020 and has 78.3K members.
How many members does r/HotScienceNews have?
r/HotScienceNews has about 78.5K members. ViralHunt has tracked 496 of its posts; the biggest reached 8.5K upvotes, which is 108 per 1,000 members.
What is the most viral post on r/HotScienceNews?
"Colon cancer now leading cause of cancer deaths under 50 in US. Three in four cases in under-50s are advanced stage at diagnosis, largely be" reached 8.5K upvotes and 708 comments in 2026, the highest score among the posts we hold from r/HotScienceNews.
What subreddits are similar to r/HotScienceNews?
Communities of a comparable size we track: r/greenland, r/Leakednews, r/LetsDiscussThis, r/stevehofstetter, r/StrikeAtPsyche, r/InvictaSolaris.
What kind of posts do best on r/HotScienceNews?
Of the posts we hold, 100% are link posts.
When is the best time to post on r/HotScienceNews?
Across 496 timestamped posts we hold, the slots whose posts averaged the highest score are Thursday at 20:00 UTC (2.7K avg upvotes), Tuesday at 12:00 UTC (2.5K avg upvotes), Thursday at 10:00 UTC (2.5K avg upvotes). The busiest day is Friday. For Reddit as a whole, see the best time to post on Reddit page.
How many upvotes does a post need to reach the top of r/HotScienceNews?
The 20th-best post we hold from r/HotScienceNews has 3.7K upvotes, so that is roughly the bar for the top twenty. We captured 100 posts from it in the last 30 days.

See what is climbing here before you write

ViralHunt tracks Reddit and eight other networks, records how every post grows, and puts what is taking off in front of your team in one list.

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Every figure here is what ViralHunt has captured from r/HotScienceNews, not everything the community has ever posted. We deliberately do not publish an average score: our sample is weighted toward a community's best posts, so an average would be flattering and wrong. Peak per 1,000 members is computed the same way for every community listed. See how we measure.