#supernovae

Live, measured metrics for the hashtag #supernovae 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 #supernovae

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.

$23.52/ year · 10-character #name
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1
Uses / 7 days
Mastodon
1
Accounts / 7 days
Mastodon
40
Recent posts
Mastodon
~0/hr
Recent pace
Mastodon · last 40
0.5
Avg reactions / post
Mastodon · last 40
—
Reddit posts / month
Reddit search
—
Open-web mentions
hashtag.org Firehose

Day-by-day usage

measured · mastodon.social (Mastodon public tags API) · fetched 2026-10-19 13:41 UTC
0
10-13
0
10-14
1
10-15
0
10-16
0
10-17
0
10-18
0
10-19

1 uses by 1 unique accounts across the window. Real per-day counts, not estimates. Newest bar is today so far.

Related hashtags

measured · mastodon.social (Mastodon public search API) · fetched 2026-10-19 13:41 UTC

Live pulse

measured · mastodon.social (Mastodon tag timeline) · fetched 2026-10-19 13:41 UTC

Everything below is measured over the latest 40 public posts (spanning ~5617 hours).

Top of the latest posts

  • NASA’s Webb Telescope Locates Former Star That Exploded as Supernova https://science.nasa.gov/missions/webb/nasas-webb-telescope-locates-former-star-that-exploded-as-supernova/ #NASA #Astrophysics #GoddardSpaceFlightCenter #JamesWebbSpaceTe

    NASA@[email protected]♥ 7↻ 12026-02-23 15:22 UTCView post →
  • Fermi individua il motore nascosto dietro le supernove superluminose #fermi #supernovae superluminose @astronomia Nuove osservazioni nei raggi gamma effettuate dal telescopio spaziale Fermi suggeriscono che le stelle di neutroni ultramagnet

    Umberto gaetani@[email protected]♥ 4↻ 22026-05-21 09:54 UTCView post →
  • Un ultimo ballo prima della morte: le stelle binarie e le origini delle supernove interagenti #supernovae @[email protected] @[email protected] Quando le stelle massicce muoiono, scatenano alcune delle esplosioni più potenti dell'un

    Umberto gaetani@[email protected]♥ 2↻ 02026-07-24 07:56 UTCView post →

What “supernovae” means

Wikipedia

A supernova is a powerful and luminous explosion of a star. A supernova occurs during the last evolutionary stages of a massive star, or when a white dwarf is triggered into runaway nuclear fusion. The original object, called the progenitor, either collapses to a neutron star or black hole, or is completely destroyed to form a diffuse nebula. The peak optical luminosity of a supernova can be comparable to that of an entire galaxy before fading over several weeks or months.

“Supernova” on Wikipedia (CC BY-SA) →

#supernovae across platforms

every network with a public tag surface

Follow #supernovae 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/supernovae