AI Learned the Rules of the Universe and That Became a Problem
Two images from the Quijote simulations used in this study. The panels show the same region of the…
Scientists Develop a New Way To Measure Gravitational Waves in the Expanding Universe
Gravitational waves are typically studied as faint disturbances moving through otherwise quiet spacetime, but the situation becomes far…
The Strange “Spacetime Crystal” That Can Suddenly Turn Into a Black Hole
Physicists have long known that black holes do not necessarily have to form from collapsing stars. Under the…
AI Learned How the Universe Works—and That Created an Unexpected Problem for Physicists
When cosmology makes headlines, we often see fancy images of cosmic maps and supernovas. But in reality, scientists…
Astronomers Push Back on a Challenge to How the Universe Will End
Someday, the universe will end. As for how—be it the Big Freeze, the Big Rip, the Big Crunch,…
A Universe Without Dark Energy? Mathematicians Challenge Standard Cosmology
A new analysis argues that the standard cosmological model may be fundamentally unstable, raising questions about whether dark…
Can Our Model of the Cosmos Work Without Dark Energy? New Research Says It Can
Dark energy has been a mysterious element of cosmological equation since it was proposed three decades ago, but…
Cosmic Voids May Contain the Universe’s Best Secrets
Nature abhors a vacuum, so the saying goes, but nobody told the universe. Space is filled with cosmic…
Scientists May Have Found Dark Matter’s Fingerprint in a Black Hole Collision
Gravitational waves from colliding black holes may hold subtle clues about one of the universe’s greatest mysteries: dark…
Faint black hole ‘ringing’ provides a sharper test of Einstein’s gravity
When two black holes crash together, the violence does not end at impact. The newly formed black hole…
The Universe may have begun inside a black hole, not a Big Bang
For nearly a century, modern cosmology has treated the Big Bang as the opening moment of everything, the…
The universe is significantly older than previously thought, astronomers find
Galaxies spotted by the James Webb Space Telescope have been causing trouble for the standard story of cosmic…