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Eric Berger engagement report

@SciGuySpace - 439K followers on X

Measured over 41 original posts from a 30-day window, last computed on September 24, 2026.

Engagement

Top quarter for its size
Per follower
0.247%
of 439K followers
Per impression
1.70%
64K views on a typical post
Reach
14.5%
of its followers see a post
Typical post
1.1K
interactions (median)
Saved
0.104%
66 bookmarks on a typical post
Posting rate
2.43/day
active 83% of days
Peak time
16:00 UTC
Wednesday

A typical post picks up 1.1K interactions against 439K followers, an engagement rate of 0.247%. Measured over 41 original posts, its engagement rate beats 84% of 20,444 tracked accounts of a similar size. Comparing inside a size band matters here: engagement rate falls as accounts grow, so a raw rate would mostly just re-measure the follower count. Posts are seen about 64K times each, and 1.70% of those impressions turn into an interaction. That is about 14.5% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 2.4 posts a day over the last 30 days, with activity on almost every day in the window. Most posts go out around 16:00 UTC, and Wednesday is the busiest day of the week. Of the 41 posts sampled, 22% carry an image or video and 71% link out. The account's strongest tracked post pulled 8.1K interactions, about 7.5x its own typical post. Recurring topics include #astronaut, #tribfest26.

Measured over 41 original posts from a 30-day window, last computed on September 24, 2026. Recurring tags: #astronaut, #tribfest26.

Compared with accounts its own size

Eric Berger's engagement rate beats 84% of the tracked X accounts closest to it in follower count (20,444 accounts, accounts of similar size (decile 10 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 0.247%, Eric Berger sits above the 50th percentile of the 204,694 accounts in this comparison. That places it in the above the median band, which runs 0.143% to 0.677%.

p100.004%
p250.024%
p50 (median)0.143%
p750.677%
p902.55%
p9982.4%
Engagement rate as a share of followers, across the 204,694 accounts we have scanned enough to measure. The axis is logarithmic, because the top and bottom of this population are about 22,880 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 Wednesday 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: Wednesday.
SunMonTueWedThuFriSat
Above the authors' own mediansBelowScale: plus or minus 111%Busiest day: Wednesday
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 video22% of posts+111%+108% to +115%34K
Outbound link71% of posts-41%-42% to -40%32K
Typical length--3%-3% to -2%54K
  • 22% 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.
  • 71% 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 162 characters, which falls in the 80 - 180 characters band. Across the catalog, posts of 80 to 180 characters run 3% below 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

  • Jan 18, 20247.5x their median

    I’m thrilled to announce the sequel to Liftoff, titled REENTRY, will be published on September 24. This book picks up the story where Liftoff left off, taking readers on a wild ride aboard the Falcon 9, Dragon, Heavy, and so much more. Publisher page: https://t.co/UqEl83GNWA https://t.co/xOI7XMF2KN

    6.5K8106361512.5M viewsView on X
  • Dec 30, 20116.7x their median

    SpaceX has Boeing, Lockheed, Europe (Ariane) and Russia (Proton/Soyuz) near checkmate in rocket technology. End game is all about China.

    5.5K521204271View on X
  • Aug 26, 20264.8x their median

    Anyone betting against SpaceX building a massive spaceport in southern Louisiana has not been paying attention to what has happened in Starbase over the last decade. And SpaceX now has exponentially more funding and far fewer restrictions at the proposed site.

    4.8K2359510120K viewsView on X
  • Sep 1, 20264.7x their median

    Shout-out to everyone working at SpaceX a decade ago who woke up to some very, very bad news.

    4.9K7296231.8M viewsView on X
  • Sep 15, 20264.3x their median

    Going for orbit, finally. A huge milestone. https://t.co/MFYC44JPpn

    4.3K1796310214K viewsView on X
  • Aug 28, 20263.8x their median

    The PLA is in deep disarray. Xi has purged virtually all senior generals, particularly from the rocket forces. A report by US intelligence indicated that corruption was so bad that some missiles were filled with water instead of rocket fuel https://t.co/W9vFvSHRcH

    3.2K699119120484K viewsView on X
  • Sep 22, 20262.7x their median

    Jared Isaacman does not appear to be screwing around with NASA’s return to the Moon. This article may make some heads explode in Europe. https://t.co/FlGydQBgUy

    2.7K1918026251K viewsView on X
  • Sep 16, 20262.5x their median

    Europe's response to Falcon 9 exiting the market should not be to shovel contracts to the dead-end, solid rocket technology Avio is flying. Rather it needs to invest heavily in rapid reuse, because what's coming down the line is even more of a steamroller than Falcon 9. https://t.co/3aQO4F6AAh

    2.4K13212224607K viewsView on X
  • Sep 15, 20262.5x their median

    Gwynne roasts Boeing 😭 https://t.co/XIVtHC226O

    2.4K1894639797K viewsView on X
  • Aug 25, 20262.2x their median

    Louisiana Gov. Jeff Landry says SpaceX is committing $100 billion to develop Starship factories and launch pads in coastal areas of the state. Company seeks to replicate Starbase in Texas "on a larger scale."

    2.3K1083319105K 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

#astronaut#tribfest26

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 1.1K interactions against 439K followers, an engagement rate of 0.247%. Measured over 41 original posts, its engagement rate beats 84% of 20,444 tracked accounts of a similar size. Comparing inside a size band matters here: engagement rate falls as accounts grow, so a raw rate would mostly just re-measure the follower count. Posts are seen about 64K times each, and 1.70% of those impressions turn into an interaction. That is about 14.5% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 2.4 posts a day over the last 30 days, with activity on almost every day in the window. Most posts go out around 16:00 UTC, and Wednesday is the busiest day of the week. Of the 41 posts sampled, 22% carry an image or video and 71% link out. The account's strongest tracked post pulled 8.1K interactions, about 7.5x its own typical post. Recurring topics include #astronaut, #tribfest26.

What is Eric Berger's engagement rate on X?
Eric Berger (@SciGuySpace) has an engagement rate of 0.247%, based on the median interactions across 41 original posts from the last 30 days against 439,366 followers. Replies, reposts and quote-posts of other people are excluded from that sample.
Is that a good engagement rate?
At 0.247%, Eric Berger sits above the 50th percentile of the 204,694 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 @SciGuySpace have real engagement?
Its engagement rate beats 84% of the tracked X accounts closest to it in follower count (20,444 accounts), which puts it in the top quarter for its size 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 @SciGuySpace post?
Most posts go out around 16:00 UTC, and Wednesday is its busiest day, at roughly 2.43 posts per day across the measured window.

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