EnglishAccount age: 3 years (joined July 2023)
Mark Sumner 🌒 Bluesky stats, updated continuously. @devilstower.bsky.social has 20,230 followers and 4,595 posts on Bluesky. Account age: 3 years (joined July 2023).
Followers
20K
Growth (7d)
+44
Following
516
Posts
4.6K~3.8/day
Influence
148
Follower growth
2026-06-10+546 over 128 days2026-10-28
Bio
Author, journalist, old guy. Science, climate, space, transportation, energy, and how human selection drives the evolution of all of the above. www.unchartedblue.com
Notable followers
The biggest accounts in our directory following @devilstower.bsky.social.
More Science accounts
Tia A
@tia-a.bsky.social
20K
followers
Danielle Froom 🏳️🌈
@danifroom.bsky.social
20K
followers
Nina
@mamarose0114.bsky.social
20K
followers
Reactor Magazine
@reactorsff.bsky.social
20K
followers
Sam Broughton, Ph.D.
@smbrghtn.bsky.social
20K
followers
🏳️⚧️Mel💜they/them🏳️⚧️
@meltheparadox.bsky.social
20K
followers
Science Fiction and Fantasy Writers Association
@sfwa.bsky.social
20K
followers
Guy Lane: founder Vita Sapien Philosophy
@guylane.bsky.social
20K
followers
Check Mark Sumner 🌒 with free tools
The same checks work on any Bluesky account. Free, no sign-up and no email.
Bluesky Follower Rankthe percentile a follower count sits inBluesky Post Analyzerwhich posts travelled, and which feature made the differenceBluesky Best Posting Timewhen an account's own posts actually land, as a 7 by 24 heat mapBluesky Trendswhat bluesky is talking about right now, and who is climbing
Creator Rank, our free Chrome extension, shows this account's audience rank and Creator Score next to its name on Bluesky itself.
Mark Sumner 🌒 on Bluesky - frequently asked questions
- How many followers does Mark Sumner 🌒 have on Bluesky?
- Mark Sumner 🌒 (@devilstower.bsky.social) has 20,230 followers on Bluesky. It gained 44 new followers in the last 7 days. The count is refreshed continuously from the public AT Protocol.
- When did Mark Sumner 🌒 join Bluesky, and how old is the account?
- Mark Sumner 🌒 joined Bluesky in July 2023. The @devilstower.bsky.social account is 3 years old. Searches for Mark Sumner 🌒 age often mean a personal age, which we do not publish. The figure here is the account age only.
- How many posts has Mark Sumner 🌒 published?
- Mark Sumner 🌒 has published 4,595 posts on Bluesky. That is about 3.8 posts per day over the life of the account.
- Is Mark Sumner 🌒 verified on Bluesky?
- @devilstower.bsky.social does not currently show a Bluesky verification. Many real accounts on Bluesky are unverified, since verification is still rolling out.
- What does Mark Sumner 🌒 post about?
- Mark Sumner 🌒 is classified under Science in our directory. Bio: "Author, journalist, old guy. Science, climate, space, transportation, energy, and how human selection drives the evolution of all of the above. www.unchartedblue.com".