#spacescience

Live, measured metrics for the hashtag #spacescience from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.

hashtag.org network · sponsored

Own #spacescience

This #name is available to claim. It becomes your portal on the open agent web: this very page, a keyword you rank for by an open public stake, and a verifiable identity for AI agents. Nobody else sells a page like this for every #name.

$5.00/ year · 12-character #name
Claim #spacescience — $5.00/yr→Buy on hashtag.space (web3)
card via hashtag.org · tokens via hashtag.space
5
Uses / 7 days
Mastodon
5
Accounts / 7 days
Mastodon
40
Recent posts
Mastodon
~0/hr
Recent pace
Mastodon · last 40
3.7
Avg reactions / post
Mastodon · last 40
—
Reddit posts / month
Reddit search
—
Open-web mentions
hashtag.org Firehose

Day-by-day usage

measured · fosstodon.org (Mastodon public tags API) · fetched 2026-10-10 20:53 UTC
0
10-04
1
10-05
1
10-06
1
10-07
1
10-08
1
10-09
0
10-10

5 uses by 5 unique accounts across the window. Real per-day counts, not estimates. Newest bar is today so far.

Related hashtags

measured · fosstodon.org (Mastodon public search API) · fetched 2026-10-10 20:53 UTC

Live pulse

measured · fosstodon.org (Mastodon tag timeline) · fetched 2026-10-10 20:53 UTC

Everything below is measured over the latest 40 public posts (spanning ~1809 hours).

Posting hours (UTC) — busiest: 10:00

00:0012:0023:00

Languages: English (34)

Avg boosts / post: 6

Top of the latest posts

  • As I was driving yesterday from Katwijk to Heidelberg, I didn’t have time to post about the successful second Earth flyby that ESA’s JUICE mission made on Monday, as part of its eight-year journey to Jupiter. So here’s one of the images of

    Mark McCaughrean@markmccaughrean@mastodon.social♥ 71↻ 642026-09-30 10:44 UTCView post →
  • The watch party at ESA’s European Space Operations Centre in Darmstadt, moments before the separation of the big Mercury Transfer Module propulsion system from the two science spacecraft from ESA & JAXA. And that will be the end of MTM, wit

    Mark McCaughrean@markmccaughrean@mastodon.social♥ 33↻ 142026-09-03 12:02 UTCView post →
  • Colour me impressed 👍 Beautiful new visible-light images from the DKIST solar telescope in Hawai'i, showing structures on the Sun down to 19km (26 milliarcsec) in size. These scalloped plasma structures are small-scale magnetised Kelvin-He

    Mark McCaughrean@markmccaughrean@mastodon.social♥ 28↻ 382026-08-05 17:46 UTCView post →

#spacescience across platforms

every network with a public tag surface

Follow #spacescience straight to each platform’s own tag page. Where a platform publishes open data we measure it above; the rest lock their numbers behind paid APIs, so we link rather than guess.

Every number above is measured from a named public API at the shown fetch time. Nothing is estimated or extrapolated. Platforms that lock their data behind paid APIs are not shown. Agents: the same numbers, as JSON, at /api/hashtags/spacescience