John F Wu
@jwuphysics.bsky.social
Tenure-track astronomer working on galaxies, machine learning, and AI for scientific discovery. Opinions my own. He/him.
Website: https://jwuphysics.github.io/
Website: https://jwuphysics.github.io/
Reposted by John F Wu
New job opportunity at @stsci.edu: Senior Astronomical Data Scientist for data analysis tools, working closely with my team and me.
This role is very similar to mine. If you have questions, I'm happy to answer them. 🧪🔭
This role is very similar to mine. If you have questions, I'm happy to answer them. 🧪🔭
recruiting2.ultipro.com
January 27, 2026 at 9:27 PM
New job opportunity at @stsci.edu: Senior Astronomical Data Scientist for data analysis tools, working closely with my team and me.
This role is very similar to mine. If you have questions, I'm happy to answer them. 🧪🔭
This role is very similar to mine. If you have questions, I'm happy to answer them. 🧪🔭
AI discovered 12 securities in OpenSSL(!) which were confirmed and patched by the devs.
Article is obviously a bit self-promotey, but imo deservingly so.
aisle.com/blog/aisle-d...
Article is obviously a bit self-promotey, but imo deservingly so.
aisle.com/blog/aisle-d...
AISLE Discovered 12 out of 12 OpenSSL Vulnerabilities
AISLE's autonomous analyzer found all 12 CVEs in the January 2026 coordinated release of OpenSSL, the open-source cryptographic library that underp...
aisle.com
January 28, 2026 at 5:02 AM
AI discovered 12 securities in OpenSSL(!) which were confirmed and patched by the devs.
Article is obviously a bit self-promotey, but imo deservingly so.
aisle.com/blog/aisle-d...
Article is obviously a bit self-promotey, but imo deservingly so.
aisle.com/blog/aisle-d...
Reposted by John F Wu
"While almost everything that astronomers study occurs in the vacuum of space, astronomy itself does not 'happen in a vacuum'.
Interactions between scientists, as well as outreach to members of the public, improve extensively from access to good communication tools."
Paper day! ⤵️
Interactions between scientists, as well as outreach to members of the public, improve extensively from access to good communication tools."
Paper day! ⤵️
The Astrosky Ecosystem: An independent online platform for science communication and social networking
While almost everything that astronomers study occurs in the vacuum of space, astronomy itself does not `happen in a vacuum'. Interactions between scientists, as well as outreach to members of the pub...
arxiv.org
January 26, 2026 at 10:29 AM
"While almost everything that astronomers study occurs in the vacuum of space, astronomy itself does not 'happen in a vacuum'.
Interactions between scientists, as well as outreach to members of the public, improve extensively from access to good communication tools."
Paper day! ⤵️
Interactions between scientists, as well as outreach to members of the public, improve extensively from access to good communication tools."
Paper day! ⤵️
Reposted by John F Wu
YOUR PHONE CALLS TO THE SENATE ARE WORKING. KEEP CALLING.
202–224-3121
Three Democrats who previously broke with the party and voted with the GOP are now saying they will not vote for the bill. That’s enough for the bill to be unpassable right now.
202–224-3121
Three Democrats who previously broke with the party and voted with the GOP are now saying they will not vote for the bill. That’s enough for the bill to be unpassable right now.
DHS funding bill faces new Senate hurdles after another person killed in Minneapolis
Some Democrats who voted for recent funding bills said they'll vote against any DHS bill without restrictions on enforcement operations. The deadline to avert a shutdown is Friday.
www.nbcnews.com
January 24, 2026 at 11:29 PM
YOUR PHONE CALLS TO THE SENATE ARE WORKING. KEEP CALLING.
202–224-3121
Three Democrats who previously broke with the party and voted with the GOP are now saying they will not vote for the bill. That’s enough for the bill to be unpassable right now.
202–224-3121
Three Democrats who previously broke with the party and voted with the GOP are now saying they will not vote for the bill. That’s enough for the bill to be unpassable right now.
Flurries scattered around Baltimore when the relative humidity is just 31%.
Dew point expected to rise from -23C this afternoon to -3C tomorrow!
Dew point expected to rise from -23C this afternoon to -3C tomorrow!
January 24, 2026 at 11:58 PM
Flurries scattered around Baltimore when the relative humidity is just 31%.
Dew point expected to rise from -23C this afternoon to -3C tomorrow!
Dew point expected to rise from -23C this afternoon to -3C tomorrow!
Reposted by John F Wu
Alex Pretti was a colleague at the VA. We hired him to recruit for our trial. He became an ICU nurse- I lover working with him. He was a good kind person who lived to help and these fuckers executed him.
White. Hot. Rage.
White. Hot. Rage.
January 24, 2026 at 7:31 PM
Alex Pretti was a colleague at the VA. We hired him to recruit for our trial. He became an ICU nurse- I lover working with him. He was a good kind person who lived to help and these fuckers executed him.
White. Hot. Rage.
White. Hot. Rage.
Deservedly so!
(Also felt surprisingly seen, as an Asian American who spent part of his childhood in rural Louisiana)
(Also felt surprisingly seen, as an Asian American who spent part of his childhood in rural Louisiana)
‘SINNERS’ has broken history as the MOST-NOMINATED FILM OF ALL TIME at the Oscars with 16 nominations
See the full nominees list: bit.ly/OscarNoms26
See the full nominees list: bit.ly/OscarNoms26
January 22, 2026 at 2:46 PM
Deservedly so!
(Also felt surprisingly seen, as an Asian American who spent part of his childhood in rural Louisiana)
(Also felt surprisingly seen, as an Asian American who spent part of his childhood in rural Louisiana)
Reposted by John F Wu
This is the most astonishing graph of what the Trump regime has done to US science. They have destroyed the federal science workforce across the board. The negative impacts on Americans will be felt for generations, and the US might never be the same again.
www.nature.com/immersive/d4...
www.nature.com/immersive/d4...
January 20, 2026 at 10:53 PM
This is the most astonishing graph of what the Trump regime has done to US science. They have destroyed the federal science workforce across the board. The negative impacts on Americans will be felt for generations, and the US might never be the same again.
www.nature.com/immersive/d4...
www.nature.com/immersive/d4...
Yes.... Ha ha ha... Yes!
January 20, 2026 at 12:54 PM
Yes.... Ha ha ha... Yes!
Well that was a good game
January 20, 2026 at 4:16 AM
Well that was a good game
Today I was staring at some museum art piece, thinking that it looked kind of AI generated, when a nearby docent came over and mistook my interest for genuine admiration and then proceeded to explain the artist's life history and motivations and unappreciated genius
January 20, 2026 at 12:53 AM
Today I was staring at some museum art piece, thinking that it looked kind of AI generated, when a nearby docent came over and mistook my interest for genuine admiration and then proceeded to explain the artist's life history and motivations and unappreciated genius
The most informative thread I've read on auroras!
MUST READ thread before Monday night's forecasted G4 / SEVERE geomagnetic storm. Auroras could be seen as far south as the U.S.-Mexico border at times. Widespread mid-latitude displays are possible. Here's what you need to know to have a successful aurora chase tonight! 🧵
#heliophysics #aurora
#heliophysics #aurora
January 19, 2026 at 6:51 PM
The most informative thread I've read on auroras!
Reposted by John F Wu
My textbook on SETI is published!
I hope you like it!
Please see if your libraries offer a free download—mine does!
iopscience.iop.org/book/mono/97...
🧪🔭
I hope you like it!
Please see if your libraries offer a free download—mine does!
iopscience.iop.org/book/mono/97...
🧪🔭
The Search for Extraterrestrial Intelligence: Theory and practice
The Search for Extraterrestrial Intelligence: Theory and practice, Wright, Jason T
iopscience.iop.org
January 19, 2026 at 5:55 PM
My textbook on SETI is published!
I hope you like it!
Please see if your libraries offer a free download—mine does!
iopscience.iop.org/book/mono/97...
🧪🔭
I hope you like it!
Please see if your libraries offer a free download—mine does!
iopscience.iop.org/book/mono/97...
🧪🔭
It's good that they plan these things ahead
2027 is the year of the locust
2028 is the year of alpha radiation
2027 is the year of the locust
2028 is the year of alpha radiation
January 19, 2026 at 12:26 AM
It's good that they plan these things ahead
2027 is the year of the locust
2028 is the year of alpha radiation
2027 is the year of the locust
2028 is the year of alpha radiation
Reposted by John F Wu
Erdos problems, a set of famous difficult math challenges, are a clear example of AI models breaching a threshold. The idea that an AI could solve one, let alone many, would have been insane a year ago (o1 was brand new). Now we have multiple Erdos problems solved by GPT-5.2 in the last couple weeks
January 18, 2026 at 3:38 AM
Erdos problems, a set of famous difficult math challenges, are a clear example of AI models breaching a threshold. The idea that an AI could solve one, let alone many, would have been insane a year ago (o1 was brand new). Now we have multiple Erdos problems solved by GPT-5.2 in the last couple weeks
I'm unreasonably excited for the Bad Bunny super bowl halftime show
January 17, 2026 at 1:16 AM
I'm unreasonably excited for the Bad Bunny super bowl halftime show
Another telling of this piece of history by local young filmmakers:
vimeo.com/1127642117
vimeo.com/1127642117
January 16, 2026 at 12:24 PM
Another telling of this piece of history by local young filmmakers:
vimeo.com/1127642117
vimeo.com/1127642117
For my fellow Baltimorons: Jones Falls Gateway public meeting tomorrow.
streetsofbaltimore.com/jonesfallsga...
streetsofbaltimore.com/jonesfallsga...
Jones Falls Gateway
About this ProjectThe Jones Falls Gateway Project seeks to transform a narrow, discontinuous sidewalk along the south side of Falls Road and Lanvale Street — between the CSX Bridge underpass (next to ...
streetsofbaltimore.com
January 15, 2026 at 1:43 AM
For my fellow Baltimorons: Jones Falls Gateway public meeting tomorrow.
streetsofbaltimore.com/jonesfallsga...
streetsofbaltimore.com/jonesfallsga...
Reposted by John F Wu
Reposted by John F Wu
At the center, two galaxies known as NGC 3921 are in the late stages of merging. Their collision started about 700 million years ago. Their clash, captured by Hubble, caused a rush of star formation.
Credit: ESA, NASA; Judy Schmidt.
Credit: ESA, NASA; Judy Schmidt.
January 14, 2026 at 3:49 PM
At the center, two galaxies known as NGC 3921 are in the late stages of merging. Their collision started about 700 million years ago. Their clash, captured by Hubble, caused a rush of star formation.
Credit: ESA, NASA; Judy Schmidt.
Credit: ESA, NASA; Judy Schmidt.
Congratulations Kailash! He has led some truly creative and inspiring work!
The 2026 Beatrice M. Tinsley Prize, which is awarded every two years to recognize an outstanding research contribution to astronomy or astrophysics of an exceptionally creative or innovative character, goes to Kailash Sahu (Space Telescope Science Institute).
January 14, 2026 at 1:26 PM
Congratulations Kailash! He has led some truly creative and inspiring work!
Not sure why the fans are booing... did anyone really think the Steelers would advance?
January 13, 2026 at 4:15 AM
Not sure why the fans are booing... did anyone really think the Steelers would advance?
POV when I make a cappucino in front of my Italian colleagues at 12:01 pm
January 12, 2026 at 6:55 PM
POV when I make a cappucino in front of my Italian colleagues at 12:01 pm
Linus Torvalds vibe-coding guitar pedal software was not on my 2026 bingo card
github.com/torvalds/Aud...
github.com/torvalds/Aud...
GitHub - torvalds/AudioNoise: Random digital audio effects
Random digital audio effects. Contribute to torvalds/AudioNoise development by creating an account on GitHub.
github.com
January 11, 2026 at 1:12 AM
Linus Torvalds vibe-coding guitar pedal software was not on my 2026 bingo card
github.com/torvalds/Aud...
github.com/torvalds/Aud...
Reposted by John F Wu
Just one more week to visit the interactive House of Melo exhibit at the Enoch Pratt Free Library Central Branch! Celebrate Baltimore's own Carmelo Anthony, his storied basketball career and his lasting impact on the city and the game. The exhibit is open through January 16. https://loom.ly/mz0yfd0
January 9, 2026 at 2:12 PM
Just one more week to visit the interactive House of Melo exhibit at the Enoch Pratt Free Library Central Branch! Celebrate Baltimore's own Carmelo Anthony, his storied basketball career and his lasting impact on the city and the game. The exhibit is open through January 16. https://loom.ly/mz0yfd0