Something may have twisted the universe's oldest light.
Or our detectors may simply be tilted by a fraction of a degree.
Those two possibilities are extraordinarily difficult to tell apart.
Our new paper, just published in Astrophysical Journal Letters, puts that idea to the test.
Thread on Lonappan, Keating, & Arnold ApJ🧵
Something hit the Moon in 2024 hard enough to carve a crater 222 meters across. We didn’t notice. NASA found it later by comparing before-and-after images. McGetchin is the largest newly formed impact crater yet found anywhere in the Solar System. The Moon is less boring than it looks.
Read it here: https://t.co/2SEI77VjC9
Everything, everywhere, all at once star trail. These are all the star trail photos from the past two weeks compiled into one photo. The photos themselves are unchanged or edited. Nikon Z9, 15 second exposures, Dragon window, @bot took a directory of 100s of photos and overlayed them on one photo without changing them.
Whenever AI Doom strikes just remember the Skunk Works only had:
Slide rules ✅
Friden calculators ✅
IBM mainframes ✅
Wind tunnels ✅
They didn’t have:
CAD ❌
CFD ❌
Still, they built a titanium aircraft that cruised above Mach 3, heated enough to expand in flight, and leaked fuel on the runway because the airframe was designed to seal when hot and high.
Stanford scientists put millions of living human neurons into mice whose own cortex had been removed. The odd part? The mice still behave like mice. So where, exactly, does “human” cognition begin? We are getting disturbingly good at building experiments before we agree on what their results would mean.
Read the article here: https://t.co/r9GtRFuzU6
Something may have twisted the universe's oldest light.
Or our detectors may simply be tilted by a fraction of a degree.
Those two possibilities are extraordinarily difficult to tell apart.
Our new paper, just published in Astrophysical Journal Letters, puts that idea to the test.
Thread on Lonappan, Keating, & Arnold ApJ🧵
Great blog post from @askalphaxiv on our result here
"Differential Polarization Calibration: A Consistency Test for Cosmic Birefringence" on AlphaXiv
https://t.co/yac0AnIxBQ https://t.co/yac0AnIxBQ
Something may have twisted the universe's oldest light.
Or our detectors may simply be tilted by a fraction of a degree.
Those two possibilities are extraordinarily difficult to tell apart.
Our new paper, just published in Astrophysical Journal Letters, puts that idea to the test.
Thread on Lonappan, Keating, & Arnold ApJ🧵