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NSF - NASASpaceflight.com engagement report

@NASASpaceflight - 741K followers on X

Measured over 40 original posts from a 30-day window, last computed on September 1, 2026.

Engagement

Middle of its size range
Per follower
0.057%
of 741K followers
Per impression
1.44%
30K views on a typical post
Reach
3.99%
of its followers see a post
Typical post
426
interactions (median)
Saved
0.037%
11 bookmarks on a typical post
Posting rate
4.07/day
active 40% of days
Peak time
18:00 UTC
Friday

A typical post picks up 426 interactions against 741K followers, an engagement rate of 0.057%. Measured over 40 original posts, its engagement rate beats 60% of 3,758 tracked accounts of a similar size, which puts it in the middle of its size range rather than at either end. Posts are seen about 30K times each, and 1.44% of those impressions turn into an interaction. That is about 3.99% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 4.1 posts a day over the last 30 days, though only 40% of days saw any activity at all. Most posts go out around 18:00 UTC, and Friday is the busiest day of the week. Of the 40 posts sampled, 68% carry an image or video, 25% are part of a thread and 88% link out. The account's strongest tracked post pulled 6.5K interactions, about 15x its own typical post.

Measured over 40 original posts from a 30-day window, last computed on September 1, 2026.

Compared with accounts its own size

NSF - NASASpaceflight.com's engagement rate beats 60% of the tracked X accounts closest to it in follower count (3,758 accounts, accounts of similar size (decile 8 of 10)). A percentile is spread evenly by construction, so 50 really is the middle of that group and 90 really is its top tenth.

On engagement per impression rather than per follower it beats 62% of the same group. When those two numbers disagree, the gap is about how far its posts travel rather than how people react to them.

Where this sits in the catalog

At 0.057%, NSF - NASASpaceflight.com sits above the 25th percentile of the 36,378 accounts in this comparison. That places it in the below the median band, which runs 0.012% to 0.08%.

p100.002%
p250.012%
p50 (median)0.08%
p750.432%
p902.10%
p99161.0%
Engagement rate as a share of followers, across the 36,378 accounts we have scanned enough to measure. The axis is logarithmic, because the top and bottom of this population are about 107,364 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 percentile0.002%
25th percentile0.012%
50th percentile0.08%
75th percentile0.432%
90th percentile2.10%
99th percentile161.0%

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 18:00 UTC, and Friday 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: 18:00 UTC.
0003060912151821
Above the authors' own mediansBelowScale: plus or minus 6%Busiest hour: 18:00 UTC
Show engagement by hour posted, utc as a table
Engagement by hour posted, UTC
Hour (UTC)Vs author medianPosts
00:00 UTC-1%50K
01:00 UTC-2%51K
02:00 UTC-3%50K
03:00 UTC-4%53K
04:00 UTC-6%43K
05:00 UTC-4%42K
06:00 UTC-4%48K
07:00 UTC-5%52K
08:00 UTC-4%60K
09:00 UTC-3%69K
10:00 UTC-2%72K
11:00 UTC-3%78K
12:00 UTC-2%86K
13:00 UTC-2%94K
14:00 UTC-4%97K
15:00 UTC-2%100K
16:00 UTC-3%97K
17:00 UTC-2%90K
18:00 UTC-1%84K
19:00 UTC-2%79K
20:00 UTC-1%74K
21:00 UTC-1%66K
22:00 UTC-2%57K
23:00 UTC-2%51K
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: Friday.
SunMonTueWedThuFriSat
Above the authors' own mediansBelowScale: plus or minus 5%Busiest day: Friday
Show engagement by day of week as a table
Engagement by day of week
DayVs author medianPosts
Sunday+4%230K
Monday0%286K
Tuesday-2%276K
Wednesday-1%251K
Thursday-1%244K
Friday-3%252K
Saturday+3%227K
See what moves engagement across the whole catalogWhat counts as a good engagement rate at this size

Best tweets

  • Aug 24, 202615x their median

    The first CPU built for agents is going to work at scale. @SpaceX is deploying NVIDIA Vera to accelerate the orchestration, code execution, and data processing that powers its next generation of agentic AI — keeping GPUs fed and agents acting fast. From gigawatt AI factories to orbit. One NVIDIA architecture, everywhere.

    5.4K5942881859.8M viewsView on X
  • Aug 28, 20266.1x their median

    Starship Flight 14: Booster 21 Static Fire! Live here on X and on YT: https://t.co/aDgSkI3bzq https://t.co/S1vkuk5b33

    2.3K2303245139K viewsView on X
  • Aug 21, 20266.1x their median

    STATIC FIRE! Ship 41 fires up all six engines as its final big test ahead of Starship Flight 14. Live on X and YT: https://t.co/5MorOWpjXq https://t.co/tONZ2Cw0OQ

    2.3K215203490K viewsView on X
  • Aug 22, 20264.7x their median

    A special day at Starbase, as the final Gigabay structural beam was lifted (and then lowered again), decorated with a Christmas tree and a US flag, as well as the signatures of the dozens of workers who have been working on the project. Pic: Colleen Liedtke (@colleenadastra) https://t.co/iBujSvUPp5

    1.9K12723846K viewsView on X
  • Aug 29, 20264.2x their median

    Starship Flight 14: Booster 21 has been lifted off Pad 2's OLM and lifted to the top of the tower. That's part of the chopsticks test related to future catches. https://t.co/HSumkyMfYU https://t.co/vuXL24ptEE

    1.6K972319125K viewsView on X
  • Aug 22, 20263.6x their median

    Starship Flight 14: Ship 41 returns to the Production Site following its successful Static Fire campaign at Massey's. A few clips to show both sides of the vehicle. Looks in great shape. https://t.co/e3xbqPnwZ5 https://t.co/jmLgML7Igy

    1.4K12419894K viewsView on X
  • Aug 21, 20263.2x their median

    Falcon 9 did this. 😆 https://t.co/IwGxjs4fEw

    1.3K3135737K viewsView on X
  • Aug 30, 20263.2x their median

    Artemis IV SLS Core Stage Boattail Section arriving. Again, a sign of SLS picking up the pace as instructed by Jared. https://t.co/2y8guyW0pi https://t.co/ByALauT5NY

    1.3K638457K viewsView on X
  • Aug 30, 20263.2x their median

    S/C Sep for Nancy Grace Roman Space Telescope. https://t.co/0DzgZy0UNm

    1.2K11911879K viewsView on X
  • Aug 20, 20262.4x their median

    🚀 Join us LIVE for Electron’s 93rd mission and 9th launch for @QPS_inc, “The Lightning God Defends” https://t.co/64912Qmw2s

    871128222297K 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.

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Reading these numbers

A typical post picks up 426 interactions against 741K followers, an engagement rate of 0.057%. Measured over 40 original posts, its engagement rate beats 60% of 3,758 tracked accounts of a similar size, which puts it in the middle of its size range rather than at either end. Posts are seen about 30K times each, and 1.44% of those impressions turn into an interaction. That is about 3.99% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 4.1 posts a day over the last 30 days, though only 40% of days saw any activity at all. Most posts go out around 18:00 UTC, and Friday is the busiest day of the week. Of the 40 posts sampled, 68% carry an image or video, 25% are part of a thread and 88% link out. The account's strongest tracked post pulled 6.5K interactions, about 15x its own typical post.

What is NSF - NASASpaceflight.com's engagement rate on X?
NSF - NASASpaceflight.com (@NASASpaceflight) has an engagement rate of 0.057%, based on the median interactions across 40 original posts from the last 30 days against 741,395 followers. Replies, reposts and quote-posts of other people are excluded from that sample.
Is that a good engagement rate?
At 0.057%, NSF - NASASpaceflight.com sits above the 25th percentile of the 36,378 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 @NASASpaceflight have real engagement?
Its engagement rate beats 60% of the tracked X accounts closest to it in follower count (3,758 accounts), which puts it in the middle of its size range group. Ranking inside a size band matters because engagement rate falls as accounts grow, so a raw rate would mostly re-measure the follower count. It is a starting point for a look at follower quality, not a verdict on it.
When does @NASASpaceflight post?
Most posts go out around 18:00 UTC, and Friday is its busiest day, at roughly 4.07 posts per day across the measured window.

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