But the Big Bang theory predicts that about 5% of the universe's contents should be atoms made of protons, neutrons and ...

Harvard's Avi Loeb reveals shocking anomalies in comet 3I/ATLAS, from sunward jets to 'industrial' alloys. Could this interstellar visitor be more than just ice?

According to the theory, our reality is encoded on the boundary of a black hole within a much larger universe.

An international team of astronomers has achieved a first in probing the early universe, using the James Webb Space Telescope ...

Our own planet represents a tiny fraction of the peculiar phenomena that can be found lurking throughout the cosmos, and every day astronomers turn up new surprises. In this gallery, we take a look at ...

Scientists have discovered a giant cosmic filament where galaxies spin in sync with the structure that holds them together.

In recent years, astronomers have become increasingly interested in a theoretical particle known as the axion, which was ...

NASA's SPHEREx has mapped the entire sky in 102 infrared colors, revealing hidden details about galaxies and the early ...

Neutron stars explained through stellar remnants and collapsed stars, revealing extreme density, gravity, magnetism, and ...

Tiny red light points from the early universe are puzzling. JWST data suggest: Black holes shining like stars are behind them ...

From stranded astronauts to secret moons to space photos that were once impossible to consider, here are the top space ...

Astronomers tracking interstellar comet 3I/ATLAS reveal a far bigger story: a colossal, rotating chain of galaxies that may ...