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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/

1411 Posts3980 Follower681 Folgt
John F Wu@jwuphysics.bsky.social · 3h ago

My daughter's school sent me a URL-shortened link to an "apptegy.me" page containing a link to a flyer, which is a Canva space, which tells me that there is a parent information session TOMORROW AT 4PM, and contains another URL-redirect link to the virtual meeting. Guys I wish I were making this up

Mike Masnick@masnick.com · 5d ago

So this story won't receive much attention, but... is kind of a big deal? It sure looks like the plaintiffs lawyers in the big copyright case against OpenAI/Microsoft did some seriously sketchy shit to manufacture evidence and sneak it into the case....

Techdirt@techdirt.com · 5d ago

OpenAI Accuses Plaintiffs’ Lawyers Of Paying For, Hiding, And Then Laundering Sketchy Key Evidence In AI Copyright Case A ton of attention... https://www.techdirt.com/2026/09/25/openai-accuses-plaintiffs-lawyers-of-paying-for-hiding-and-then-laundering-sketchy-key-evidence-in-ai-copyright-case/

Dr. Jessie Christiansen@aussiastronomer.bsky.social · last wk.

Congrats to the whole PRIMA team on the selection of NASA's first Probe Explorer mission!!!!!! @caltechipac.bsky.social will be PRIMA's science center, and we look forward to working with everyone over the next decade on this exciting project! www.nasa.gov/news-release...

NASA Selects Far-Infrared Telescope as First in New Mission Class - NASA

NASA announced Wednesday a mission to explore the history and evolution of the universe, PRIMA (PRobe far-Infrared Mission for Astrophysics), is advancing to

nasa.gov

Gautam Kamath@gautamkamath.com · 2w ago

Nihar Shah did a heroic experiment for TMLR: he spent 20-25 hours over two weeks interviewing authors of seemingly low-quality submissions about their own papers. He confirmed what we all suspected: people submitting these papers have *no idea* what is going on in them.

Transactions on Machine Learning Research@tmlrorg.bsky.social · 2w ago

TMLR has faced a deluge of submissions, necessitating stricter desk rejection policies due to limited reviewer capacity Co-EiC Nihar Shah reached out to authors of 10 papers slated for desk reject. Could they answer questions about their *own* submission? medium.com/@TmlrOrg/ask...

Ethan Mollick@emollick.bsky.social · 2w ago

The state of public AI benchmarking is dire and is undermining our ability to understand how good AI is now Most famous measures are maxed out, and, as this paper shows, the non-saturated benchmarks are riddled with so many errors that they vastly underestimate AI abilities arxiv.org/abs/2609.13009

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Matthew Kenerly@mattk-fs.bsky.social · 2w ago

For the Baitmore Bluesky folks: If you like the idea of volunteering a couple hours of your time in exchange for multiple free beers, then do I have the event for you.

Trash Free Maryland@trashfreemd.bsky.social · 2w ago

5 Days Away, Register Today! Join Trash Free Maryland for the 9th Annual Cheers to Clean Water Clean Up in Baltimore, Sept. 19th, 2026! Enjoy a day of community, cleaning up and clean brews with your favorite local sponsoring breweries in partnership with Blue Water Baltimore 🌊🍻!

Matt Henderson@matthen.com · 2w ago

chaos from bouncing a ball in a circle- at each point, I simulate a bunch of futures with slightly different velocities- showing how predictable the system would be with measurement error. The system seems to move between Stable Eras and Chaotic Eras, where it is hard to predict four bounces ahead

Michael Clemens@mclem.org · 3w ago

The US President's new proposal to tax international students has been approved by the White House for release this week. It's an unprecedented $100,000 tax on int'l grads who stay to work after graduation on Optional Practical Training (most grads do), a crucial bridge to remaining by any channel.

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John F Wu@jwuphysics.bsky.social · 3w ago

"These are the times you never get back", I say to myself as my toddler, sick and home from school, throws up on the changing mat as I'm switching out a poopy diaper.

Jessica Hullman@jessicahullman.bsky.social · 3w ago

I'm getting asked to review a LOT of heavily AI-written sloppy papers. Very often from top general science journals. Most have policies to ensure author accountability. They don't seem to be working. Reviewers can incentivize better policy by temporarily creating friction. 1/

Jayke Samson Nguyen@jayke.io · 3w ago

Hot off the press! Via the magic of differentiable forward modeling and of non-redundant masking on JWST we may have found a new exoplanet! One of the most challenging papers I've written, but I'm glad its finally out! Submitted to AJ, pending peer review. arxiv.org/abs/2609.10507

A Candidate Innermost Fifth Planet In the HR 8799 System Revealed By JWST NIRISS Aperture Masking Interferometry

We detect a candidate fifth planet in the HR 8799 system, directly imaged with the JWST/NIRISS Aperture Masking Interferometer (AMI). The detected source lies just above a $3σ$ contrast curve at a con...

arxiv.org

Chris Lintott @chrislintott.bsky.social · 3w ago

The editor in chief or the publications committee. Though I’m sorry to say that (some) referees were using these tools anyway and I am not convinced a blanket ban is policeable given the current level of tech.

Trevor A. Branch@trevorabranch.bsky.social · 3w ago

This is seismic news for fisheries scientists. Northern cod is *the* iconic symbol of total fisheries collapse due to overfishing (and other factors) *and* the iconic symbol of a complete failure to recover for decades afterwards. This is like announcing the complete recovery of bison on land.

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UBC Oceans@ubcoceans.bsky.social · 3w ago

For the first time in over 30 years, Newfoundland and Labrador’s Northern cod stock has been deemed “healthy” by Ottawa. www.canadianaffairs.news/2026/09/05/i...