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

Using the Neutron star Interior Composition Explorer (NICER) onboard the International Space Station (ISS), astronomers have ...

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

All but one of Andromeda's satellite galaxies were found to be pointing right at us. According to our best models, that shouldn't be the case at all.

Using the Subaru Telescope at Maunakea, Hawaii, the team discovered a “Dark Matter bridge” connecting Perseus to a subcluster ...

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

"Most people just dismiss partial eclipses. But I wanted to go to this partial eclipse to try to get the corona — and I did ...

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

The cloud, named Eos after the Greek goddess of dawn, had eluded researchers because it contains very little carbon monoxide ...

The planet orbits its host star in just 30.5 hours, losing a mass of material roughly equal to Mount Everest each time ...

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

The trio is a rarity—and when all of its unusual traits are considered together, it is unique.