A new study suggests the Sun moved outward with many similar stars during a large Milky Way migration event long ago.

A new study looking at the isotopic ratios in interstellar comet 3I/ATLAS after its closest approach to our star has suggested it may have formed around an old, low-metallicity star in the Milky Way's ...

Astronomers have discovered a flattened structure of matter around the Milky Way that explains the unusual motion of nearby galaxies.

By Will Dunham WASHINGTON, March 16 (Reuters) - Astronomers have spotted a planet orbiting a star in our neighborhood of the ...

It’s “common knowledge”—and the scare quotes should be a warning—that the sun is an average star.

Like the lead character of “Project Hail Mary,” some scientists are proposing ways that life might exist beyond a star’s “habitable zone,” often considered the gold standard of potential livability ...

The local universe may be expanding more slowly than previously thought, a discovery that could relieve a pesky discrepancy ...

Astronomers have discovered a planet with a surface of molten magma and a sulfur-rich atmosphere, 34 light-years away in the constellation Volans. This planet is larger than Earth but less dense, ...

Like tiny photobombers, cosmic anomalies resembling small, bright red points show up in almost every snapshot taken by the ...

T he first time I heard about galaxies without dark matter, I was sitting in my very first graduate class at the University of São Paulo. It was 2018, and the discovery had just ...

A new study by the SETI Institute suggests that the alien signals might be right here, surrounding us all of the time, and we're just unable to pick them out.

As interstellar comet 3I/ATLAS makes its closest approach to gas giant Jupiter, a team of astronomers has concluded it may be even older than we thought. By analysing its chemical composition, they ...