Everything humanity has ever touched, measured, or imagined as “normal” matter is a tiny sliver of reality. Less than 5 ...

The Webb space telescope observed a supernova that took place when the universe was 730 million years old, setting a new ...

New measurements using gravitational lensing suggest the universe’s current expansion rate does not agree with signals from the early cosmos.

Cosmic dawn galaxies seen by JWST reveal hidden clues about dark matter and keep rival theories about its true nature alive.

By harnessing the Speed Force, DC Comics ’ Flash is the fastest being in comic book history, capable of moving at speeds that ...

Astronomers are a step closer to cracking one of the secrets of dark energy—the mysterious force believed to be causing the universe's accelerated expansion.

The comet is the third object ever confirmed to have entered our cosmic neighborhood from elsewhere in the galaxy. Space ...

Leading X-ray space telescopes XMM-Newton and XRISM have spotted a never-seen-before blast from a supermassive black hole. In ...

Astronomers have sighted the oldest known stellar explosion, dating back to when the universe was less than a billion years ...

NASA has visualized the cataclysm, which is thought to have caused a mysterious eruption of gamma rays captured by telescopes ...

A flaring black hole whips up ultra-fast winds of more than 37,000 miles per SECOND, reveals new research. X-ray space ...

New simulations of Milky Way-like galaxies reveal that the strange split between two chemically distinct groups of stars may ...