A star called TOI-2155 lies around 1,350 light-years (839 trillion miles) from Earth. It is a little bigger, heavier and ...

The first dark comet—a celestial object that looks like an asteroid but moves through space like a comet—was reported less than two years ago. Soon after, another six were found. In a new paper, ...

Add Yahoo as a preferred source to see more of our stories on Google. This image provided by NASA shows X-rays from NASA’s Chandra X-ray Observatory (represented in blue) that have been combined with ...

Astronomers have identified a repeating radio signal that is also emitting X-rays, a first-of-its-kind observation that may point to an entirely new class of astronomical objects. The object, named ...

A new study led by researchers from the Yunnan Observatories of the Chinese Academy of Sciences has developed a neural network-based method for large-scale celestial object classification, according ...

CAPE CANAVERAL, Fla. (AP) — Astronomers have discovered a strange new object in our Milky Way galaxy. An international team reported Wednesday that this celestial object — perhaps a star, pair of ...