🤝
Make a deal with Mike Brown
🔒 Paid proposals held safely in escrow — released only when the work's approved.
Followers
21.1K
Account age
3 yrs
💰 Suggested sponsorship rate
$118 – $192 / sponsored post
Estimated from audience size & typical reach — every deal is negotiable and held in SocialDB escrow.
🎁 Free analysisfor Mike Brown
Known for
📊 Post engagement
103
Avg engagement / post
0.5%
Engagement vs followers
May 2023
On Bluesky since
🔥 Top post: Fun Saturday night trying to clean up a computer takeover/banki · 186 likes + reposts
📊 Activity & format
Posting cadence
2.8 / week
Posts several times a week.
Content mix
Mostly text
Recent: 8 text · 4 image · 0 video.
Follower / following
135×
Follows 156 back. A strong ratio — an audience that follows them, not a follow-for-follow network.
Recent posts
View on Bluesky ↗
This is a super cool paper (and last chapter of her PhD thesis) from my now-graduated student @import-astrory.bsky.social
I would explain more but, really, the headline kind of does the job.
Last night was the annual summer dinner and awards presentation for my research group. It was a nice dinner outside on the lawn, but the awards, of course, are the highlights. Follow along (I think the last one is the best though I am perh…
You must bring me… a shrubbery! (With a baby bobcat inside)
I was excited a couple of weeks ago to announce that my my very free revamped Science of the Solar System online class was soon to be up and running on Coursera only to realize today that they no longer all very free classes but will inste…
It’s Monday and all accounts are locked down and the scam/theft appears broken up. This morning the MIL mentioned an account she had neglected to tell us about and, yup, they had tried to break in but the bank appears to have shut it down.…
Utterly adorable tiny bob cat kittens in our back yard being watched very closely by indoor cats who are Not Pleased By The Visitors
Look. I can’t condone this behavior. But can’t we all agree that planets are delicious and also ask who amongst us has not been tempted to at least take a nibble?
This Star Just Ate a Planet, and It’s Not Done Yet
For approximately 3 years I have been promising to rerecord the outdated lectures in my (exceedingly free) online Science of the Solar System course. I JUST FINISHED TODAY. Give me a week or so to get it all posted. Please clap, but, bette…
Happy birthday to this little bunny who is, inexplicably, 21 years old today. It is pretty hard for me to fathom.
Ok look I wasn’t **planning** to watch the World Cup in Spanish but my daughter got a Peacock subscription so she could watch Love Island this summer so here we are. Football in Spanish by day, whatever that is on that Island by night. Not…
By a funny coincidence, 15 years ago I wrote a book review for the Wall Street Journal of a book written by the person who is going to be the president of Caltech starting next week. I can't remember what I wrote and can't read behind the …
🦋 Handle & authenticity
✅ Domain-verified
@plutokiller.com
The handle is the domain plutokiller.com. On Bluesky a domain handle proves the owner controls that website — so this is verifiably the real plutokiller.com account, not an impersonator.
On Bluesky since
May 2023
An early adopter from the invite-only beta (before the Feb 2024 public launch) — an original, established account.
💡 Facts
🗓️Joined Bluesky in 2023 — 3 years ago.
👁️Averages 103 views per post.
📤Posts about 2.8× per week.
🏅Earned the 10K Followers for passing 10K followers.
🕵️ Fake follower check
Estimated72/100
Good
Credibility score
94%
Real
Real audience
Low
Fake-follower risk
High
Data confidence
- Est. 94% real, active audience · Low fake-follower risk.
- Engagement (~0.5% of followers engage each post) is around typical for Bluesky.
- Organic base — far more followers than accounts it follows.
- Established account (3+ years old).
Heuristic estimate from engagement, follower ratios, account age & growth — a screening signal, not a guarantee.
About
Astronomer, planet hunter, Pluto killer, bear whisperer, finger-wrapped dad. Dangerous secularist. Foot soldier in the War on Cars. He/him.
mikebrown.caltech.edu
📸 Gallery
🔀 Audience overlap
EstimatedEstimated shared audience with similar creators — useful for avoiding overlap (or doubling down) when planning a campaign.
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Frequently asked questions
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Mike Brown hasn't published fixed prices yet. Send a proposal through SocialDB and agree terms directly — your payment is held in escrow until the work is approved.
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How many followers does Mike Brown have?
Mike Brown has 21,133 followers on Bluesky.
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