Andromeda XXXV is only about 20,000 times more massive than our Sun—very small, even for a satellite galaxy. For comparison, ...

Even the little-understood Oort Cloud, at the outer edges of our solar system beyond view, has a partly spiral structure.

Interstellar material has been discovered in our solar system, but researchers continue to hunt for where it came from and ...

Astronomers have discovered two exoplanets around TOI-1453, a star about 250 light years away. These two exoplanets, a super-Earth and a sub-Neptune, are common in the galaxy, yet are absent from our ...

Our Solar System is in motion and cruises at about 200 kilometres per second relative to the center of the Milky Way.

2025 — A new study presents a compelling new model for the formation of super-Earths and mini-Neptunes -- planets that are 1 to 4 times the size of Earth and among the most common in our galaxy.

The agency had planned to launch both missions at the same time on Saturday (March 8) aboard a SpaceX Falcon 9 rocket, but ...

NASA’s latest space weather mission, PUNCH (Polarimeter to Unify the Corona and Heliosphere), has officially gone online, ...

Satellites come in all shapes and sizes, but there aren't any that look quite like SPHEREx, an infrared observatory NASA ...

but some of them may have formed relatively recently in the solar system’s history. The former Google chief executive is taking a controlling interest in Relativity Space, which aims to build ...

NASA has launched the SPHEREx telescope to uncover the ingredients for life in our galaxy, as well as the PUNCH mission to study the sun’s mysteries.