#BlackHoles
Live, measured metrics for the hashtag #BlackHoles from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
Own #blackholes
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 2026-11-09 03:09 UTC1 uses by 1 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 2026-11-09 03:09 UTCLive pulse
measured · fosstodon.org (Mastodon tag timeline) · fetched 2026-11-09 03:09 UTCEverything below is measured over the latest 40 public posts (spanning ~1602 hours).
Posting hours (UTC) — busiest: 09:00
Languages: English (34) · French (3) · Finnish (2) · German (1)
Avg boosts / post: 0.8
Top of the latest posts
Researchers at #MainzUniversity rule out “stupendously large” primordial #BlackHoles as significant part of #DarkMatter: Cosmic microwave background measurements by Planck satellite show no evidence of those large black holes formed shortly
Cool interview. Transcript and audio in the link. "In this episode, Doeleman tells co-host Janna Levin how he turned the Earth into a telescope capable of seeing a black hole, the incredible level of science and collaboration that was requi
Kids, go find daddy's bong. https://www.youtube.com/watch?v=dggmMflAGG8 #science #space #BlackHoles #TimeTravel #singularity
What “blackholes” means
Wiktionary · Wikipediablackholes
- nounA place of punitive confinement; a lockup or cell; a military guardroom.
A black hole is an astronomical body so compact that its gravity prevents anything, including light, from escaping. Albert Einstein's theory of general relativity, which describes gravitation as the curvature of spacetime, predicts that any sufficiently compact mass will form a black hole. The boundary of no escape is called the event horizon. In general relativity, crossing a black hole's event horizon traps an object inside but produces no locally detectable change. General relativity also pre
“Black hole” on Wikipedia (CC BY-SA) →#blackholes across platforms
every network with a public tag surfaceFollow #blackholes 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/blackholes