After five years of staring at the night sky from a mountaintop in Arizona, the most ambitious galaxy-mapping experiment ever ...

The conclusion of DESI's first survey marks an important milestone for cosmology, which finds itself in a bind for the best ...

Cosmic viewer The Atacama Cosmology Telescope in Chile was used by the team to observe gravitational interactions between ...

Ultra-faint dwarf galaxies orbiting the Milky Way are cosmic fossils. New simulations reveal how these tiny systems reflect ...

Ultra-faint dwarf galaxies—tiny satellite galaxies orbiting the Milky Way—have long been seen as cosmic fossils. Now, a new ...

Scientists tie a mysterious UV glow across the Milky Way to dark matter annihilation, offering a first indirect glimpse of ...

The most precise measurement yet shows the Universe is expanding faster than expected, deepening the Hubble tension. The ...

The team successfully built the largest, highest-resolution 3D map of the cosmos ever constructed. The completed map charts ...

Generally speaking, black holes are regions of spacetime where matter is compressed into a tiny space. Dark matter, meanwhile ...

Cyclic cosmology, or the big bounce, is the idea that the universe will eventually crunch back together and then go through ...

A model of the cyclic universe suggests that dark matter could be a population of black holes predating the Big Bang.

Physicists are looking for ways to explain dark matter in our universe and letting go of the Big Bang Theory might help.