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

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

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

The Hubble Space Telescope captures stunning imagery of barred spiral galaxy UGC 678. The galaxy is located about 260 million ...

The Hubble and Chandra space telescopes are hunting for rogue black holes wandering through dwarf galaxies, which could ...

HOUSTON, TX -A seven-year-old girl in Lucknow stood in her backyard at dawn in October 1957, watching Sputnik streak across the sky. Nearly seven decades later, that child would help steer some of ...

It's well established that the universe is expanding, but there's serious disagreement among scientists over how fast it's happening.

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.

It's the final act for a star in the constellation Cygnus, some 1,000 light-years away. But this star is not dying without ...

What looks like a galactic dance is really a cosmic optical illusion—two galaxies, worlds apart, perfectly aligned by chance.

The Egg Nebula, located around 1,000 light years away, is home to a dying star entering last phase of its life.