The first time I heard about galaxies without dark matter, I was sitting in my very first graduate class at the University of São Paulo. A team had found a small, strange galaxy that appeared to ...

How fast can a galaxy build ordered magnetic fields spanning thousands of light-years? Existing theories say several billion ...

Astronomers using the James Webb Space Telescope have spotted the most distant “jellyfish galaxy” ever seen — a cosmic oddity ...

The research could shed light on how black holes vomit out matter and how this influences their home galaxies.

Astronomers studying a distant galaxy cluster stumbled upon ancient radio signals that might hold clues to the formation of the early universe. While studying the distant galaxy cluster known as ...

The XRISM spacecraft has captured the dramatic awakening of a supermassive black hole, IRAS 05189-2524, as it fires cosmic bullets into a starburst galaxy. This extraordinary discovery offers an ...

The jellyfish galaxy in question. The dashed circles mark the four extra-planar sources that are identified in the galaxy’s tail. Credit: The Astrophysical Journal. Astronomers ...

The standard model for how galaxies formed in the early universe predicted that the James Webb Space Telescope (JWST) would see dim signals from small, primitive galaxies. But data are not confirming ...

Add Yahoo as a preferred source to see more of our stories on Google. An international team of researchers, using the Large Binocular Telescope in Arizona, has discovered a faraway galaxy named KiDS ...

Scientists observe a dramatic collision between two planets, offering insights into the formation of Earth's Moon 4.5 billion years ago.

This NASA/ESA Hubble Space Telescope image features a galaxy whose asymmetric appearance may be the result of a galactic tug of war. Located 35 million light-years away in the constellation Leo, the ...