Our solar system may have a ninth planet after all, following the declassification of Pluto nearly two decades ago, ...

Scientists examined infrared space surveys to narrow down candidates for Planet 9. Planet 9 would be so far from the Sun that ...

The presence of another planet in the solar system could explain the odd movements of some of the bodies in the Kuiper Belt.

Scientists have found evidence for a cosmic collision in the Perseus cluster, a group of thousands of galaxies not far from ...

The dark nebula is part of the Circinus West molecular cloud, which stretches for 180 light-years, containing a mass 250,000 ...

The largest sample of galaxy groups ever detected has been presented by a team of international astronomers using data from ...

A rare and dramatic scene unfolds 140 light-years from Earth. A rocky planet, once whole, is now crumbling to dust under the ...

Astronomers have confirmed a wandering black hole, about seven times the mass of the Sun, 5,000 light-years from Earth.

Scientists have discovered a planet that is literally falling apart as it orbits its star. Located about 140 light-years from ...

We were doing the typical planet vetting, and I happened to spot this signal that appeared very unusual.” An orbiting ...

"The key planet-formation processes in protoplanetary disks remain an active matter of research. One promising mechanism to ...

Overlaid in blue is the inferred distribution of dark matter. . | Credit: HyeongHan et al. Astronomers thought the Perseus cluster was a massive-but-stable grouping of galaxies, until they found ...