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

Add Yahoo as a preferred source to see more of our stories on Google. (Credit: NASA/ESA) It's been 35 years since Hubble came online, so in honor of the intrepid telescope's 35th anniversary, we've ...

This is the first time humans have laid eyes on these deep space objects.

During its 35 years of orbiting the Earth, the Hubble Space Telescope has transmitted endless streams of magnificent images, confirmed the existence of "dark matter," and helped track a vagabond black ...

This phase only lasts a few hundred years.

The image Hubble captured was of the Egg Nebula, in the constellation Cygnus, about 1,000 light-years away, according to NASA.

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

NASA’s Hubble Space Telescope has provided some of the clearest views of the Egg Nebula, a stunning cosmic structure located ...

NASA shared images of the Egg Nebula as the star inside it is dying. #hubblespace #dyingstar #eggnebula #spaceexploration ...

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

It's been 35 years since Hubble came online, so in honor of the intrepid telescope's 35th anniversary, we've put together this gallery of our favorite Hubble images. The Hubble Space Telescope was ...

It's been 35 years since Hubble came online, so in honor of the intrepid telescope's 35th anniversary, we've put together this gallery of our favorite Hubble images. The Hubble Space Telescope was ...