Though tiny, this newfound satellite galaxy around M31 offers big lessons — and questions — about how galaxies evolve.

Swirling through the Milky Way's central zone, in the turbulent region surrounding the supermassive black hole at the core of ...

For over a century, astronomers have marveled at the beauty and complexity of spiral galaxies, which feature arms covered in ...

In the 1930s, astronomer R.J. Trumpler realized that the estimates of the size of the Milky Way galaxy by Kapteyn and others ...

"Light pollution from projects like INNA doesn't just hinder research, it steals our shared view of the universe." ...

The James Webb Telescope has discovered a gigantic galaxy in the early universe, probably from 12 billion years ago.

An accidental discovery by a team of astronomers has upended existing theories about how galaxies formed in the early ...

A research team led by McGill identifies neutron stars as the likely source of fast radio bursts, one of the universe's most ...

Last year, an enormous map of the cosmos hinted that the engine driving cosmic expansion might be sputtering. Now physicists ...

A recent study using the James Webb Space Telescope has promoted the theory long held by certain astrophysicists that we live ...

Euclid, launched from Florida in 2023 on a planned six-year mission, is an orbiting observatory gathering data on how the ...

If our 13.8 billion-year-old cosmos could be considered middle-aged, researchers note these new images captured around its ...