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Mike Brown

@plutokiller.com.bsky.social

Astronomer, planet hunter, Pluto killer, bear whisperer, finger-wrapped dad. Dangerous secularist. Foot soldier in the War on Cars. He/him. mikebrown.caltech.edu

20,458 Followers  |  153 Following  |  2,073 Posts  |  Joined: 02.05.2023  |  2.2233

Latest posts by plutokiller.com on Bluesky

You might be thinking of Griffith Observatory?

08.08.2025 23:26 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
Mount Wilson Observatory | Talks & Telescopes: Dr. Mike Brown

Hey if you're in LA tomorrow evening and looking to escape (some of) the heat, come on up to Mt. Wilson and listen to me tell stories about the search for Planet Nine then stay late and look through the telescopes to do a little searching yourself.

www.mtwilson.edu/events/talk0...

08.08.2025 18:56 โ€” ๐Ÿ‘ 49    ๐Ÿ” 10    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 1

A red letter day for sure!

06.08.2025 20:02 โ€” ๐Ÿ‘ 3    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Here is a bonus Patch for you

05.08.2025 21:55 โ€” ๐Ÿ‘ 16    ๐Ÿ” 1    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

I donโ€™t feel particularly old today. Did he, on his last day? Iโ€™ll never know. I always wondered what it would feel like to be precisely this many days old. Today, it feels like I am happy to still be here and hope to stick around for a while yet and I wish he was here to share it still. (5/5)

05.08.2025 21:20 โ€” ๐Ÿ‘ 77    ๐Ÿ” 1    ๐Ÿ’ฌ 8    ๐Ÿ“Œ 0

I now have days to live that he never got. Maybe I will meet grandchildren (no time soon please ok?), learn to love my daughterโ€™s partner. Maybe I will become an old pirate (space pirate rather than sea pirate, I think, but might still need the hoop earring). (4/5)

05.08.2025 21:19 โ€” ๐Ÿ‘ 44    ๐Ÿ” 0    ๐Ÿ’ฌ 6    ๐Ÿ“Œ 0

I also think about all of the things I wish he could have done. Like meet my wife. Meet his granddaughter. Iโ€™m pretty sure he would have enjoyed getting to know both of them. But it never happened. Will never happen. (3/5)

05.08.2025 21:18 โ€” ๐Ÿ‘ 41    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

I think a lot about all of the things he didnโ€™t get to do that he wanted to do. Sail around the world. Move to Key West. Become an old pirate with a gold hoop earring (ok, he was on his way on that one). But cancer took him long before any of that could happen. (2/5)

05.08.2025 21:18 โ€” ๐Ÿ‘ 37    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
A tombstone:
THOMAS EDWARDS 
        BROWN
    Jan 16, 1939
    Mar 16, 1999

A tombstone: THOMAS EDWARDS BROWN Jan 16, 1939 Mar 16, 1999

My father died a couple of months after his 60 birthday. This was 26 years ago. Iโ€™ve thought about todayโ€™s date, August 5th, 2025, for these past 26 years. Today, I am the same number of days old he was on the day he died. Every day I live past today is a day he didnโ€™t have. (1/5)

05.08.2025 21:17 โ€” ๐Ÿ‘ 189    ๐Ÿ” 7    ๐Ÿ’ฌ 13    ๐Ÿ“Œ 1
The same bear, snoozing while floating in the pool

The same bear, snoozing while floating in the pool

He literally had one elbow on a step and the rest of his body is floating. His eyes are closed. He is dreaming of an unlocked trash can

05.08.2025 20:52 โ€” ๐Ÿ‘ 101    ๐Ÿ” 8    ๐Ÿ’ฌ 3    ๐Ÿ“Œ 0
A brown colored black bear chilling in the pool on a hot day. He has the bare necessities. He might like some fancy ants though.

A brown colored black bear chilling in the pool on a hot day. He has the bare necessities. He might like some fancy ants though.

Patch is here. He is forgetting about his worries and his strife (yeah man)

05.08.2025 20:50 โ€” ๐Ÿ‘ 240    ๐Ÿ” 28    ๐Ÿ’ฌ 10    ๐Ÿ“Œ 5

Oh youโ€™re right I remember that sequence

01.08.2025 05:41 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Always do

01.08.2025 01:11 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Such a weird little earthquake here in Southern California this morning. Very very slight rattling but it lasted much longer than I would guess it would have for how close it was (close usually means short and sharp). Curious to hear the story of this one.

31.07.2025 16:39 โ€” ๐Ÿ‘ 22    ๐Ÿ” 1    ๐Ÿ’ฌ 5    ๐Ÿ“Œ 1

no comets here i don't think. try outer space. i hear that's where they hang out.

29.07.2025 21:50 โ€” ๐Ÿ‘ 3    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

I always thought that one was a little weird. If not for the clustering the key evidence for P9 goes away

29.07.2025 03:30 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 0

ah, yeah, it is simply that the object is at the lower bound of where things aren't stuck to P9. So if P9 is a little more distant it isn't bound.

28.07.2025 16:53 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

I missed that; what sort of orbit do they need?

27.07.2025 23:36 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

my wife is greatly relieved. thanks!

26.07.2025 14:18 โ€” ๐Ÿ‘ 5    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

I'm getting better

26.07.2025 13:45 โ€” ๐Ÿ‘ 125    ๐Ÿ” 9    ๐Ÿ’ฌ 12    ๐Ÿ“Œ 0

me, overthinking: could this be me?

25.07.2025 23:23 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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You hear about Pluto? He's still not adopted - that's messed up! But so is Jupiter, Venus, Mars, Mercury and Saturn. What on Earth is going on? Make Seattle Humane part of your orbit and get these planetary puppies one giant step home!

25.07.2025 00:08 โ€” ๐Ÿ‘ 281    ๐Ÿ” 79    ๐Ÿ’ฌ 9    ๐Ÿ“Œ 16

someone needs to get that cartoon bear cartoon pool toys!

24.07.2025 13:36 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Not too much I donโ€™t think. Their survey is severely biased to find objects misaligned

23.07.2025 15:54 โ€” ๐Ÿ‘ 4    ๐Ÿ” 2    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

(I'm slow)

22.07.2025 13:48 โ€” ๐Ÿ‘ 0    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

actually the real pioneer was Margaret Cabbage. Dr. Cabbage is related to many other Drs., including Dr. Brocolli, Dr. Cauliflower, and Dr. Kale.

19.07.2025 00:59 โ€” ๐Ÿ‘ 6    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

bears posts are my personal must-repost-tom-holland-zendaya

19.07.2025 00:56 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
Two bears in a river. One of them is eating a salmon

Two bears in a river. One of them is eating a salmon

Da bears explore.org

19.07.2025 00:47 โ€” ๐Ÿ‘ 67    ๐Ÿ” 3    ๐Ÿ’ฌ 3    ๐Ÿ“Œ 0

๐Ÿ˜†

19.07.2025 00:52 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Preview
TOP 10 Female Astronomy Innovators In honor of International Women's Day on March 8, we have selected the ten most influential women who have forever changed our ideas about astronomy

wow check it out Heidi Gammel even looks a lot like you. So weird.
universemagazine.com/en/ten-most-...

18.07.2025 23:29 โ€” ๐Ÿ‘ 8    ๐Ÿ” 2    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

@plutokiller.com is following 20 prominent accounts