Researchers have found a candidate for the hypothetical Planet Nine, which could be an undiscovered giant planet way out in ...

Caroline Delbert is a writer, avid reader, and contributing editor at Pop Mech. She's also an enthusiast of just about ...

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

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

Eos, a newly discovered hydrogen cloud just 300 light-years from Earth, offers a rare look at hidden star-forming regions.

The possibility that an additional planet may be hidden far into the solar system was touted more than a century ago. In 1983 ...

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

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

All but one of Andromeda's satellite galaxies were found to be pointing right at us. According to our best models, that ...