A hundred years ago, astronomer Edwin Hubble dramatically expanded the size of the known universe. At a meeting of the ...

Observations from NASA's Chandra X-ray telescope and the VLT have revealed jets blasting from supermassive black holes cause ...

Astronomers have released the most comprehensive photograph of the Andromeda galaxy, which contains over 200 million stars.

According to NASA, "there are hundreds of them"—massive black holes roaming space. It is now emerging and reshaping the ...

Explore the breathtaking beauty of the cosmos with seven incredible images of star clusters and galaxies captured by NASA.

ESA’s decade-long Milky Way Gaia mapping mission still has tons of data to release over the next few years. Expect surprises.

In 1610, astronomer Galileo Galilei used the newly invented telescope to show that the Milky Way was composed ... begun during the big bang. NASA named its flagship space observatory after Hubble ...

Around 2015, astronomers took on the painstaking task of stitching together Hubble Space Telescope images of this galaxy, but that effort had focused on the galaxy's northern half. Still, however, the ...

NASA will host a news conference at 12 p.m. EST Friday, Jan. 31, to discuss a new telescope that will improve our ...

This NASA/ESA Hubble Space Telescope image features a spiral galaxy, named UGC 10043. This NASA/ESA Hubble Space Telescope ...

NASA’s recent Image of the Day was the outer regions of the Tarantula Nebula, which is billed as one of the biggest and ...