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

Add Yahoo as a preferred source to see more of our stories on Google. Since its launch in 1990, the Hubble Space Telescope has made revolutionary achievements in astronomy. The new Ja mes Webb Space ...

"The Galaxy Next Door" — This composite image of the Andromeda galaxy was produced by NASA's Galaxy Evolution Explorer, showing Andromeda's ultraviolet side. Paris Alston: This is GBH's Morning ...

The Hubble Space Telescope has captured imagery of spiral galaxy UGC 2890. The "galaxy lies around 30 million light-years away in the constellation Camelopardalis," according to the Hubble team.

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

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 ...

The Hubble Space Telescope shines in a picture taken from the Space Shuttle Discovery during Hubble's second servicing mission in 1997. The elderly Hubble Space Telescope has been on a rollercoaster ...

Add Yahoo as a preferred source to see more of our stories on Google. NASA's Hubble Space Telescope caught a glimpse of 3I/ATLAS – again. For months, 3I/ATLAS has attracted plenty of attention – and ...

Hubble has run into more trouble. The space telescope slipped into a hibernating state more than a week ago when one of its three remaining gyroscopes — part of the pointing system — malfunctioned.

If we could go back 101 years, we would encounter a time when scientists still thought the Milky Way was the entirety of our ...