@TSHamiltonAstro

🇺🇸 Mild-mannered professor by day. Astrophysicist by night. Methodist, Smoky Mountain hillbilly. Observational research on active galaxies & galaxy evolution.

Joined November 2014
  • Tweets89.1K
  • Following2.9K
  • Followers3.2K
3.7KMedia
Tim Hamilton retweeted
Corey S. Powell@coreyspowell15h
A major event just passed without notice: the 180th anniversary of the discovery of dark matter. You hadn't heard that we discovered dark matter 180 years ago? Well, have I got a story to share with you. My latest Invisible Universe column, here: invisibleuniverse.substack.c…
This image shows the location of Cloud-9, which is 14 million light-years from Earth. The diffuse magenta is radio data from the ground-based Very Large Array (VLA) showing the presence of the cloud. The dashed circle marks the peak of radio emission,which is where researchers focused their search for stars. Follow-up observations by the NASA/ESA Hubble Space Telescope’s Advanced Camera for Surveys found no stars within the cloud. The few objects that appear within its boundaries are background galaxies. Before the Hubble observations, scientists could argue that Cloud-9 is a faint dwarf galaxy whose stars could not be seen with ground-based telescopes due to the lack of sensitivity. Hubble’s Advanced Camera for Surveys shows that, in reality, the failed galaxy contains no stars.

ALT This image shows the location of Cloud-9, which is 14 million light-years from Earth. The diffuse magenta is radio data from the ground-based Very Large Array (VLA) showing the presence of the cloud. The dashed circle marks the peak of radio emission,which is where researchers focused their search for stars. Follow-up observations by the NASA/ESA Hubble Space Telescope’s Advanced Camera for Surveys found no stars within the cloud. The few objects that appear within its boundaries are background galaxies. Before the Hubble observations, scientists could argue that Cloud-9 is a faint dwarf galaxy whose stars could not be seen with ground-based telescopes due to the lack of sensitivity. Hubble’s Advanced Camera for Surveys shows that, in reality, the failed galaxy contains no stars.

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unusual_whales
@unusual_whales16h
BREAKING: Major U.S. banks are detecting unauthorized third-party AI agents operating inside customer accounts, with some agents attempting to take actions that appear to be independent of user instructions, per Axios
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"Good morning, gentlemen, the temperature is 110 degrees." "Holy shit, it's Viper!"
🇺🇸𝗢𝗹𝗱 𝗦𝘂𝗯𝗺𝗮𝗿𝗶𝗻𝗲𝗿⚓️
@USN_Submariner11h
Damn. RIP Viper 🫡
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"Good morning, gentlemen, the temperature is 110 degrees..."
🤖 Made with AI
Variety
@Variety12h
Tom Skerritt, who starred in the TV series “Picket Fences” and appeared in movies ranging from “MASH” to “Alien,” “Top Gun,” “A River Runs Through It” and “Ted,” has died of natural causes at 93. variety.com/2026/film/news/t…
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Tim Hamilton retweeted
Phil Hoyeck
@PAHoyeck16h
If you post about reading banned books but none of the books you read appear on the Catholic Church's Index of Forbidden Books, then you're doing a bad job.
charu
@charureadssOct 21
I read banned books
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"This doohickey can make any food I want?" "Affirmative." "Computer. A succulent Chinese meal." [Red Alert]
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Dang, Viper’s dead.
Dan Roach 🛩️ FRAS 🔭
@dannydenfisch11h
RIP Viper 😢
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Tim Hamilton retweeted
Phil Hoyeck
@PAHoyeck18h
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Umm…like, the entire the 20th century just called, and…
Daniel Steinmetz-Jenkins
@daniel_dsj2110Oct 20
Francis Fukuyama: "The lack of a strong national musical tradition contributes to the weakness of American national identity."
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I've found a great use for AI in converting my handwritten astronomy notes into PowerPoint slides w/diagrams. The AI generally does a good job making the drawings, although I've had to give it a lot of feedback and make design rules. Saves me hours and hours of time each lesson.
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P.S. @WKCosmo, thanks for mentioning your success in doing this with conversion to LaTeX with TikZ figures. I figured that meant it was worth trying in PowerPoint.
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For Hungary, I'm not sure whether to go with: a) "It's people! Drunkard's soup is people!" or b) * "On the bright side, Hungary has eliminated alcoholism." —"You mean they've cured them, right?" * <stares> —"Right?!?"
Terrible Maps
@TerribleMapsOct 20
The hangover cure in each European country
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Tim Hamilton retweeted
Phil Hoyeck
@PAHoyeckOct 20
Mobster: What are you, some kinda wise guy? Socrates: Why... yes, kind of.
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Whoever’s drinking (chewing on?) vodka-soaked socks has a problem.
Terrible Maps
@TerribleMapsOct 20
The hangover cure in each European country
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Only 36,000 unread messages? Once you get tenure, you can bump those numbers way up.
PHD Comics@PHDcomicsOct 20
Things you can do in academia
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Doing Astronomy Lab tonight and keep wondering, "Is it Lab or Astro-Lab?"
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My wife works on colliding black holes and neutron stars, but I’ll have to admit that I hadn’t considered that the cores of merging red giants would also do a high-density inspiral. I wonder if LIGO is sensitive enough to the expected signal.
American Physical Society
@APSphysicsOct 20
When the dense helium cores of two red giants collide, the merger could produce high-energy neutrinos, finds a study in Physical Review D. IceCube could expect about one such neutrino from a single merger up to 180,000 light years away. Read the study: go.aps.org/3TQNKXM
Simulation of two colliding red giant cores. A turbulent cloud of glowing gas fills the frame against a dark background, shading from dark red at the edges through orange to a white-hot center, where two small black circles sit side by side.

ALT Simulation of two colliding red giant cores. A turbulent cloud of glowing gas fills the frame against a dark background, shading from dark red at the edges through orange to a white-hot center, where two small black circles sit side by side.

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I just stumbled across a reference to a British terrorist group called the Angry Brigade, and I keep picturing them as a Monty Python skit.
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"It's a cookbook!"
Far Side Fix
@farsidefixOct 20
#TheFarSide
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WFH world champion
Africa Today Media Group
@africatodayMGOct 19
President of Cameroon, the 93-year-old Paul Biya, is expected to visit Cameroon next week! He will have a two-week working trip before returning to Geneva, Switzerland, where he lives.
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