#HardScienceFiction

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

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$5.00/ year · 18-character #name
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0
Uses / 7 days
Mastodon
0
Accounts / 7 days
Mastodon
40
Recent posts
Mastodon
~0/hr
Recent pace
Mastodon · last 40
0
Avg reactions / post
Mastodon · last 40

Day-by-day usage

measured · fosstodon.org (Mastodon public tags API) · fetched 2026-07-29 01:51 UTC
0
07-23
0
07-24
0
07-25
0
07-26
0
07-27
0
07-28
0
07-29

0 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 2026-07-29 01:51 UTC

No related tags with measured usage found for #hardsciencefiction.

Live pulse

measured · fosstodon.org (Mastodon tag timeline) · fetched 2026-07-29 01:51 UTC

Everything below is measured over the latest 40 public posts (spanning ~7919 hours).

Posting hours (UTC) — busiest: 07:00

00:0012:0023:00

Languages: English (29) · German (2) · Danish (1)

Avg boosts / post: 1.4

Top of the latest posts

  • Quasit's Daily Book Recommendations: "Tales of Known Space" (1975) by Larry Niven Age Range: 15 to adult Genre: Science Fiction (hard science fiction) Larry Niven was THE pre-eminent hard science fiction writer for many decades. But unlike

    Quasit@[email protected]♥ 0↻ 32026-07-18 01:56 UTCView post →

  • Finished reading Adrian Tchaikovsky's "Children Of Strife." https://amzn.to/4dbmURq 📖🚀🪐 While the earlier books in this epic series were better, this was still engaging and inventive. #Books #Reading #ScienceFiction #SciFi #HardScienceFi

    Paul Semel@[email protected]♥ 0↻ 32026-07-12 06:23 UTCView post →

  • 2010: Odyssey Two (Space Odyssey Series Book 2) "A daring romp through the solar system and a worthy successor to 2001" Sale: $10 to $1.99 by Arthur C. Clarke Rating: 4.5/5 (3,640 Reviews) #scifi #hardsciencefiction #space #odyssey #books #

    Kindle Daily Deals@[email protected]♥ 0↻ 12026-07-12 04:32 UTCView post →

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/hardsciencefiction