Let me first tell you how mysterious dark energy is. Einstein added a cosmological constant to his equations to keep the ...

There could be many more satellite galaxies orbiting the Milky Way than previously thought or observed, according to astronomers.

A James Webb Space Telescope study is setting the record straight on the ages of some known ancient galaxies, which have turned out to be much older and farther away in space than previously ...

The Lambda Cold Dark Matter (LCDM) theory suggests that most galaxies are low-mass dwarf galaxies, many of which orbit larger galaxies like the Milky Way. More broadly, the LCDM represents our ...

A cosmic dance could be the future of the Milky Way as it tracks a course to collide with neighboring galaxies, a University of Queensland survey has found. The paper is published in the Monthly ...

In the past, scientists often thought these extremely bright objects weren't early galaxies, but something else that mimicked them.

The spectra of these early galaxies show that these cosmic rays have gained more energy in galaxies with higher star formation rates where the magnetic fields are also stronger.

What happens when two rare ring galaxies collide? They form an infinity symbol—or the face of a cosmic owl, depending on how you look at it. The James Webb Space Telescope has helped two ...

Galaxies aren’t swelling and stars aren’t stretching—what’s expanding is far stranger. The very fabric of space itself is ...

Two colliding galaxies have been found to be reorganizing their dwarf satellites, potentially solving a major conundrum plaguing the standard model of cosmology.

An infinity symbol–shaped galaxy hosts an active supermassive black hole. The growing giant may have come from the aftermath of a galactic smashup.