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
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%.
Show the percentile table
| Percentile | Engagement rate |
|---|---|
| 10th percentile | 0.002% |
| 25th percentile | 0.012% |
| 50th percentile | 0.08% |
| 75th percentile | 0.432% |
| 90th percentile | 2.10% |
| 99th percentile | 161.0% |
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.
Show engagement by hour posted, utc as a table
| Hour (UTC) | Vs author median | Posts |
|---|---|---|
| 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 |
Show engagement by day of week as a table
| Day | Vs author median | Posts |
|---|---|---|
| Sunday | +4% | 230K |
| Monday | 0% | 286K |
| Tuesday | -2% | 276K |
| Wednesday | -1% | 251K |
| Thursday | -1% | 244K |
| Friday | -3% | 252K |
| Saturday | +3% | 227K |
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.
- 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
- 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
- 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
- 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
- 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
- Aug 21, 20263.2x their median
Falcon 9 did this. 😆 https://t.co/IwGxjs4fEw
- 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
- Aug 30, 20263.2x their median
S/C Sep for Nancy Grace Roman Space Telescope. https://t.co/0DzgZy0UNm
- 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
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.