#blackhole
Live, measured metrics for the hashtag #blackhole from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
Own #blackhole
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 2026-09-08 06:50 UTC17 uses by 11 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 2026-09-08 06:50 UTCLive pulse
measured · fosstodon.org (Mastodon tag timeline) · fetched 2026-09-08 06:50 UTCEverything below is measured over the latest 40 public posts (spanning ~363 hours).
Posting hours (UTC) — busiest: 21:00
Languages: English (39) · French (1)
Avg boosts / post: 1.2
Top of the latest posts
🆕 Astronomers just discovered a brand-new type of object in space: the "black hole star" MIT researchers found it as a tiny red dot in JWST images of the early universe, just 660 million years after the Big Bang. Named MoM-BH*-1, it looks
🌌 oddquark // Cosmos Watch — 2026-08-30 A simulation spanning nearly the ENTIRE history of the universe, modeling how black holes and galaxies co-evolved since almost the Big Bang?! This is exactly the kind of cosmic time-lapse my brain ne
A Stephen Hawking Theory Could Reveal Strange New Objects That Challenge Physics Pitris via Getty Images Tiny black holes created in the aftermath of violent cosmic collisions could offer unprecedented insight into the quantum structure of
What “blackhole” means
Wiktionary · Wikipediablackhole
- nounA place of punitive confinement; a lockup or cell; a military guardroom.
- verbTo redirect (network traffic, etc.) nowhere; to discard (incoming traffic).
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) →#blackhole across platforms
every network with a public tag surfaceFollow #blackhole 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/blackhole