#extragalactic
Live, measured metrics for the hashtag #extragalactic from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
Own #extragalactic
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.
Day-by-day usage
measured · fosstodon.org (Mastodon public tags API) · fetched 2026-08-12 13:41 UTC0 uses by 0 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 2026-08-12 13:41 UTCLive pulse
measured · fosstodon.org (Mastodon tag timeline) · fetched 2026-08-12 13:41 UTCEverything below is measured over the latest 8 public posts (spanning ~31989 hours).
Posting hours (UTC)
Languages: English (7) · Italian (1)
Avg boosts / post: 2.6
Top of the latest posts
Hello #Astrodon ! I still feel #NewHere so here’s an #introduction . I’m an #extragalactic astronomer at the #OpenUniversity in the UK, interested in submm blobs, strong gravitational lensing, #MachineLearning applications, crowdsourced dat
So now that I have migrated to #astrodon maybe I should do a new #introduction. I'm a postdoc at Stockholm university working on #ExtraGalactic stuff and Lyman alpha in particular. My PhD focused on low redshift galaxies and with the help o
Cosmologists Parry Attacks on the Vaunted Cosmological Principle A central pillar of cosmology — the universe is the same everywhere and in all directions — is surviving a storm of possible evidence against it. https://www.quantamagazine.or
What “extragalactic” means
Wiktionary · WikipediaExtragalactic astronomy is the branch of astronomy concerned with objects outside the Milky Way galaxy. In other words, it is the study of all astronomical objects which are not covered by galactic astronomy.
“Extragalactic astronomy” on Wikipedia (CC BY-SA) →#extragalactic across platforms
every network with a public tag surfaceFollow #extragalactic 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/extragalactic