Thrilled to share I’ve joined OpenAI for Science, a new team building AI systems to advance scientific reasoning and accelerate discovery in math and physics. 🧵
Alex Lupsasca
126 posts
Alex Lupsasca
@ALupsasca
Research Scientist @OpenAI & Assistant Professor @VanderbiltU. Black holes, photon rings, gravity & beyond. Formerly @Harvard and @Princeton.
- Replying to @ALupsascaAfter GPT-5 Pro launched, I gave it that same problem. To my utter shock, it rediscovered the result in <30min! See for yourself: chatgpt.com/share/68b006eb… It’s not flawless (it needs priming on the flat-space case before tackling the full problem) but the leap is incredible.
- Replying to @ALupsascaAs a theoretical physicist, I used to think it would be a long time before AI could touch the research frontier. Then GPT-5 Pro arrived, and it completely changed my mind.
- Replying to @ALupsascaThese examples and many others have convinced me: AI will transform scientific research. There’s still huge room to grow, and I’m excited to help push those boundaries at OpenAI for Science!
- Replying to @ALupsascaAnd it’s not just theory. GPT-5 Pro can also tackle hard questions in observational astrophysics, producing answers that would take a bright grad student several days of research time: chatgpt.com/share/68d154c9…
- Replying to @ALupsascaThis summer I wrote a paper on new symmetries in black-hole perturbation theory: arxiv.org/abs/2506.05298 It is relatively easy to unfold the physical implications of these symmetries once they are known, but the hard part is finding their precise form (or if they even exist).
- Does Einstein’s theory of general relativity break down in the extreme gravity of a black hole? Is the black hole at the center of our galaxy spinning, and how fast does it drag the fabric of spacetime around with it? Astrophysical jets are the most powerful light signals in the
- Replying to @ALupsascaThis took me days of tough calculation, as you might guess from the complicated form of the generators of these new symmetries (Eq. 7 of the paper):
- Replying to @ALupsascaTo answer these fundamental questions in physics, we are developing a bold mission to launch a satellite into Earth orbit and take the sharpest images in the history of astronomy: the Black Hole Explorer. BHEX is designed to peer all the way down to the event horizon of a black
- Replying to @ALupsascaTogether with an international team of scientists and engineers, we are now hard at work designing and prototyping the BHEX instrument, and are gearing up to propose it as the next NASA Small Explorers Mission, slated for a 2031 launch. The journey ahead will be difficult but we
- What would the world around you look like if you were staring at a black hole? If you want to know the answer, download our new iPhone app that will give you "Black Hole Vision"---apps.apple.com/us/app/black-h…
- A new version of Black Hole Vision is out. Now featuring a selfie mode and including rotating (Kerr) black holes. Check it out if you haven't already! apps.apple.com/us/app/black-h…
