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U.S. National Science Foundation engagement report

@NSF - 1.2M followers on X

Measured over 12 original posts from a 30-day window, last computed on October 25, 2026.

Engagement

Per follower
0.005%
of 1.2M followers
Per impression
0.656%
9.5K views on a typical post
Reach
0.82%
of its followers see a post
Typical post
62
interactions (median)
Saved
0.126%
12 bookmarks on a typical post
Posting rate
0.43/day
active 30% of days
Peak time
16:00 UTC
Tuesday

A typical post picks up 62 interactions against 1.2M followers, an engagement rate of 0.005%. Posts are seen about 9.5K times each, and 0.656% of those impressions turn into an interaction. That is about 0.817% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 0.43 posts a day over the last 30 days, though only 30% of days saw any activity at all. Most posts go out around 16:00 UTC, and Tuesday is the busiest day of the week. Of the 12 posts sampled, 50% carry an image or video and 92% link out. The account's strongest tracked post pulled 800 interactions, about 13x its own typical post. Recurring topics include #nsffunded, #crew13.

Measured over 12 original posts from a 30-day window, last computed on October 25, 2026. Recurring tags: #nsffunded, #crew13.

Where this sits in the catalog

At 0.005%, U.S. National Science Foundation sits above the 10th percentile of the 204,424 accounts in this comparison. That places it in the bottom 25% band, which runs below 0.024%.

p100.004%
p250.024%
p50 (median)0.143%
p750.677%
p902.55%
p9982.4%
Engagement rate as a share of followers, across the 204,424 accounts we have scanned enough to measure. The axis is logarithmic, because the top and bottom of this population are about 22,888 times apart and a linear axis would flatten everything below the median into a single point.
Show the percentile table
Engagement rate percentiles
PercentileEngagement rate
10th percentile0.004%
25th percentile0.024%
50th percentile0.143%
75th percentile0.677%
90th percentile2.55%
99th percentile82.4%

This ruler is the whole measured catalog, not a size-matched group: it shows where the raw rate falls across every account we can measure, all of which are large. For a like-for-like comparison, read the size-band percentile above instead. See how the bands are built

Posting timing

This account posts most often around 16:00 UTC, and Tuesday is its busiest day of the week. The bars below are the catalog-wide pattern, with this account's own busiest slot marked. They do not show how this account performs at each hour: we keep one aggregate per account, not one per hour, so that measurement does not exist in our data.

Engagement by hour posted, UTCTwenty-four bars, one per UTC hour. Each bar shows how posts published in that hour compare with their own authors' median engagement. Bars above the centre line ran higher than the median, bars below ran lower. A marker flags Busiest hour: 16:00 UTC.
0003060912151821
Above the authors' own mediansBelowScale: plus or minus 111%Busiest hour: 16:00 UTC
Show engagement by hour posted, utc as a table
Engagement by hour posted, UTC
Hour (UTC)Vs author medianPosts
00:00 UTC-1%89K
01:00 UTC-2%90K
02:00 UTC-3%88K
03:00 UTC-4%94K
04:00 UTC-5%76K
05:00 UTC-4%75K
06:00 UTC-5%86K
07:00 UTC-5%93K
08:00 UTC-4%108K
09:00 UTC-4%124K
10:00 UTC-3%129K
11:00 UTC-3%141K
12:00 UTC-3%154K
13:00 UTC-3%167K
14:00 UTC-4%173K
15:00 UTC-2%176K
16:00 UTC-3%171K
17:00 UTC-3%159K
18:00 UTC-2%149K
19:00 UTC-2%141K
20:00 UTC-1%131K
21:00 UTC0%116K
22:00 UTC-2%100K
23:00 UTC-1%90K
Engagement by day of weekSeven bars, one per weekday, Sunday first. Each bar shows how posts published on that day compare with their own authors' median engagement. Bars above the centre line ran higher than the median, bars below ran lower. A marker flags Busiest day: Tuesday.
SunMonTueWedThuFriSat
Above the authors' own mediansBelowScale: plus or minus 111%Busiest day: Tuesday
Show engagement by day of week as a table
Engagement by day of week
DayVs author medianPosts
Sunday+5%393K
Monday+1%483K
Tuesday-2%520K
Wednesday-3%472K
Thursday-2%430K
Friday-3%447K
Saturday+2%393K
See what moves engagement across the whole catalogWhat counts as a good engagement rate at this size

Formats this account uses

Its own posting mix on the left, and what each of those formats does across every account we track on the right. Only formats where the effect clears our publish test appear here, so an empty row is a format we could not measure rather than one that does nothing.

This account's posting mix compared with catalog-wide effects
FormatThis accountCatalog effect95% intervalAccounts behind it
Image or video50% of posts+111%+108% to +115%34K
Outbound link92% of posts-41%-42% to -40%32K
Typical length-+15%+14% to +16%32K
  • 50% of this account's sampled posts carry an image or video. Across the catalog, posts with an image or video run 111% above the same accounts' other posts.
  • 92% of its posts carry a link off X. Across the catalog, posts with an outbound link run 41% below the same accounts' other posts, so a large share of this account's output sits in the weakest bucket we measure.
  • Its average post runs 336 characters, which falls in the over 280 characters band. Across the catalog, posts over 280 characters run 15% above the same accounts' other posts.

These are catalog-wide differences applied to this account's own posting mix, not a measurement of how each format performs for this account specifically. We keep one median per account, not one per format per account, so the second thing is not something this data can tell you.

Best tweets

  • Jul 22, 202613x their median

    Science: A New Golden Age calls for using AI to supercharge discovery. Today we’re expanding the @WhiteHouse’s Genesis Mission from @ENERGY to a whole-of-government effort. 15+ gov agencies will contribute $5b in research awards, funding, datasets & facilities to the Mission. https://t.co/dCoY5gCgzj

    6211184120157K viewsView on X
  • Aug 17, 202611x their median

    Today, NSF released 12 new notices of funding opportunity providing over $1.5 billion for foundational research across the sciences and engineering. https://t.co/dFbK0iRm7K

    5261322515144K viewsView on X
  • Feb 13, 20265.0x their median

    NSF is investing over $100M to launch the NSF National Quantum and Nanotechnology Infrastructure program, establishing a nationwide network of open-access research facilities for quantum and nanoscale technologies, innovation and workforce training. https://t.co/UjnVjxB6d0 https://t.co/3XCKj7yBwl

    366101353040K viewsView on X
  • Jul 8, 20268.2x their median

    Nearly 100 participants across industry, academia, and government joined the White House Summit on American Quantum Innovation 🇺🇸 The work to implement President Trump's EO—delivering a scientifically relevant quantum computer and advancing quantum sensing and networking—starts now with these critical public-private partnerships.

    37693281043K viewsView on X
  • Oct 6, 20268.1x their median

    Congratulations to Francis Halzen on winning the 2026 @NobelPrize in physics for his major contributions to the U.S. National Science Foundation IceCube Neutrino Observatory and its discoveries of elusive neutrino particles that come to Earth from distant places in the universe. For more than two decades, NSF has invested in the design, construction, and ongoing operations of NSF IceCube, enabling a deeper understanding of astrophysical neutrinos and their origins.

    3929114324K viewsView on X
  • May 14, 20266.9x their median

    NSF announces $1.5B NSF X-Labs initiative to pursue generational breakthrough science efforts. NSF X-Labs will scale a new generation of transformative independent research organizations to advance breakthrough science outside of traditional institutions. https://t.co/LljEcBoBFa https://t.co/LLDbDfzKi3

    364921628106K viewsView on X
  • Jul 29, 20267.2x their median

    NSF announced a $47 million investment to expand industry R&D opportunities for Ph.D.s in #STEM. The pilot initiative, led by @teamuidp, in partnership with universities & industry, will support four-year Ph.D. programs with real-world research placements. https://t.co/u1Ss4fi6Tt

    34279111764K viewsView on X
  • Aug 6, 20265.8x their median

    The most powerful solar telescope just opened a new window to discovery about the sun.️☀️ Using the NSF Daniel K. Inouye Solar Telescope, scientists found Kelvin-Helmholtz instability, tiny, whirlpool-like patterns on the sun's surface. https://t.co/rK8AzIJpJF 📸: NSF/@NatSolarObs /AURA/MPS

    263809720K viewsView on X
  • Oct 13, 20265.3x their median

    Under @POTUS and @FLOTUS’ leadership, the Presidential SI Challenge is back, calling on America’s students, educators, and schools to build the next generation of American innovation.   This year, entire K-12 schools can earn the First Lady Seal of SI Readiness.   Visit https://t.co/WCQgCVIZd0 and sign up today.

    23558241320K viewsView on X
  • Apr 13, 20262.5x their median

    Today, NSF announced it has made offers & will award 2,500 Graduate Research Fellowships for the 2026-2027 academic year to outstanding graduate students across the U.S. pursuing research-based degrees in science, technology, engineering and mathematics. https://t.co/IYju3vBuuC

    2084661342K viewsView on X

Ranked by total interactions across everything we have tracked for this account, which is a longer history than the 30-day window the rates above use. The multiple compares each post to this account's own median.

Recurring topics

#nsffunded#crew13

The most frequent hashtags in the sampled posts. They describe what this account writes about; they are not a performance signal, and the catalog-wide breakdown on the hub shows how little hashtag count moves.

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Reading these numbers

A typical post picks up 62 interactions against 1.2M followers, an engagement rate of 0.005%. Posts are seen about 9.5K times each, and 0.656% of those impressions turn into an interaction. That is about 0.817% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 0.43 posts a day over the last 30 days, though only 30% of days saw any activity at all. Most posts go out around 16:00 UTC, and Tuesday is the busiest day of the week. Of the 12 posts sampled, 50% carry an image or video and 92% link out. The account's strongest tracked post pulled 800 interactions, about 13x its own typical post. Recurring topics include #nsffunded, #crew13.

What is U.S. National Science Foundation's engagement rate on X?
U.S. National Science Foundation (@NSF) has an engagement rate of 0.005%, based on the median interactions across 12 original posts from the last 30 days against 1,165,613 followers. Replies, reposts and quote-posts of other people are excluded from that sample.
Is that a good engagement rate?
At 0.005%, U.S. National Science Foundation sits above the 10th percentile of the 204,424 accounts in this comparison. Those comparison accounts are all large ones, because our scanning cadence is weighted towards big accounts, so this is a ranking among peers of similar scale rather than a ranking across X.
Does @NSF have real engagement?
There is not yet enough sample to rank this account against others of its size.
When does @NSF post?
Most posts go out around 16:00 UTC, and Tuesday is its busiest day, at roughly 0.43 posts per day across the measured window.

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