It's 99 percent dark matter, a new study explains.

Astronomers have confirmed the first isolated stellar-mass black hole drifting through the Milky Way, located roughly 5,000 ...

Cosmology is puzzled as to why two methods for measuring the expansion of the cosmos yield different results. A third method ...

Called CDG-2, this newly identified “ghostly” galaxy may be one of the most dark matter-dominated galaxies ever discovered, with a staggering 99% of its total mass made up of dark matter — a ...

Astronomers used AI to search 35 years of Hubble data and discovered over 1,300 rare cosmic anomalies hidden in plain sight.

The Hubble Space Telescope has imaged a "200,000 light-year-long trail of newborn stars" that may have been left behind by a ...

A stunning new Hubble image reveals the most detailed look yet at the Egg Nebula, the youngest and closest pre-planetary nebula to Earth.

Using the Hubble Space Telescope, astronomers have discovered what seems to be a galaxy that is the most heavily dominated by ...

Drawing together leading experts from across the field, an international collaboration of cosmologists has created a unified approach for measuring the value of the Hubble constant. Published in ...

In the vast tapestry of the universe, most galaxies shine brightly across cosmic time and space. Yet a rare class of galaxies ...

This phase only lasts a few hundred years.

The stunning image captures a star's dying moments wrapped in dust, light, and a cosmic conundrum still waiting to be solved.