An enormous molecular cloud has been discovered near Earth, surprising astronomers. It was named Eos, after the Greek goddess ...

The blazar BL Lacertae, a supermassive black hole surrounded by a bright disk and jets oriented toward Earth, provided ...

At 300 light-years away, the interstellar cloud is the closest of its kind ever found to Earth and the largest apparent single structure in the sky.

One of the largest structures in the sky, as seen from our perspective, has only just been discovered. It’s an enormous cloud ...