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Steve Desch

@deschscoveries

Professor of astrophysics / planetary science / meteoritics at Arizona State University.

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18.07.2023
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Latest posts by Steve Desch @deschscoveries

It’s alpacalyptic.

11.03.2026 22:51 πŸ‘ 3 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

So sorry for your loss, Michele.

08.03.2026 19:41 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

#FirstdraftSteveWinwoodLyrics ?

08.03.2026 19:21 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I love Vernor Vinge’s books. Marooned in Realtime (and prequel Peacewar) are β€˜hard’ in that they have exactly one piece of magic technology (bobbles). Fire Upon the Deep won awards but A Deepness in the Sky is my favorite sci-fi ever. Rainbows End also worth reading. I’m sad he passed recently.

08.03.2026 17:26 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Do you know what the β€œB.” in β€œBenoit B. Mandelbrot” stands for?
β€œBenoit B. Mandelbrot”.

06.03.2026 03:40 πŸ‘ 4 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

To me it looked like a large boulder the size of a small boulder?

05.03.2026 19:54 πŸ‘ 7 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Luke.

05.03.2026 19:41 πŸ‘ 4 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Preview
a man with blonde hair is making a surprised face in a room . Alt: Devin from SNL’s The Californians, nodding. β€œI said AROUND Colorado, Stuart!”

I said Earth-LIKE, Eric!

03.03.2026 06:34 πŸ‘ 4 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

ME: pack a bag, we’re flying to kansas

MY WAYWARD SON: what kind of bag

01.03.2026 04:26 πŸ‘ 1399 πŸ” 350 πŸ’¬ 26 πŸ“Œ 13
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🧡1/8
In this viral clip from Cosmos Ep.1, Carl Sagan explains how Eratosthenes (276–194 BC) calculated Earth's circumference. πŸ”­ πŸ§ͺ βš›οΈ

His estimate: 250,000 stadia β‰ˆ 25,000 miles (~40,000 km).

Crazy accurate for 2200+ years ago!

#histsci #science

26.02.2026 19:14 πŸ‘ 122 πŸ” 37 πŸ’¬ 7 πŸ“Œ 1

I nearly overlapped with Jensen Huang. πŸ˜•

24.02.2026 19:23 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Steve quietly closing this thread and tiptoeing away…

23.02.2026 02:46 πŸ‘ 4 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Point of clarification: Are we getting chowder at the drive-thru, or driving through chowder? β€˜Cuz these days it already feels like we’re driving through chowder. But convenient soup would be nice.

22.02.2026 04:50 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Why do curling stones slide across ice the way they do? After a century of study, physicists have theories β€” but they’re still not 100% sure.

Watching the Olympic curling finals this weekend? Physicists still aren't 100% sure why the big granite stones 'curl' the way they do.

go.nature.com/4rTOAOw

20.02.2026 20:36 πŸ‘ 40 πŸ” 13 πŸ’¬ 1 πŸ“Œ 2

Now I have β€œRock Me Amadeus” in my head, thanks.

20.02.2026 19:00 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I also swore off octopus, 20 years ago! Same reason. Well, not specifically tiny piano-based. But yeah they are too intelligent for me to eat.

20.02.2026 07:58 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I’m sure there’s a form for that, too, Elizabeth. πŸ˜’

20.02.2026 06:34 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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19.02.2026 18:36 πŸ‘ 2124 πŸ” 181 πŸ’¬ 36 πŸ“Œ 11
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This is not the quality of pseudoscience infotainment to which I have grown accustomed Teasing the public with fraudulent or self-deluded promises of aliens used to mean something. It took work. It meant slapping together…

Couldn’t agree more!

medium.com/@steve.desch...

19.02.2026 21:09 πŸ‘ 3 πŸ” 1 πŸ’¬ 2 πŸ“Œ 0

Did dinosaurs climb trees?!
I have to make some adjustments to my time machine…

19.02.2026 18:24 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Fun fact: the plural of unison is bison.

19.02.2026 03:57 πŸ‘ 10 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

True. To this teenager in the Reagan era, Jesse Jackson seemed impossibly idealistic, an electoral non-starter. But it’s obvious now he was right about who we are, and his agenda is what America needs today. And he laid groundwork for such a future.
He seems to’ve had an invisible touch?

18.02.2026 05:17 πŸ‘ 7 πŸ” 0 πŸ’¬ 2 πŸ“Œ 0
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Wow.

17.02.2026 03:59 πŸ‘ 35967 πŸ” 16659 πŸ’¬ 1304 πŸ“Œ 2476

Steve walks warily down the street…

16.02.2026 21:18 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

In a couple of years they have built a little pink house

15.02.2026 20:53 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I remember that day!

14.02.2026 20:39 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Unfortunate Agreement is our band name.

14.02.2026 03:42 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

My understanding is that this is businesses’ response to the K-shaped economy: still technically provide a product for the peons, make your profit selling decent products to the upper middle class. Solving the enshittification problem may require solving inequality. I’m not holding my breath.

13.02.2026 23:52 πŸ‘ 3 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

#tempestrong

13.02.2026 19:25 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

It’s chopped.

13.02.2026 05:23 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0