Early galaxies were star-forming machines, furiously gobbling up gas and spitting out stars. A new model helps explain why ...

New simulations show that early ultraviolet light controlled whether ultra-faint dwarf galaxies could form stars.

Mysterious blasts of radio waves from across the universe called fast radio bursts help astronomers catalog matter. ESO/M. Kornmesser, CC BY-SA Chris Impey, University of Arizona If you look across ...

The properties of faint dwarf galaxies around the Milky Way can reveal a lot about the conditions of the early universe, the ...

The Dark Energy Spectroscopic Instrument spent five years observing the sky from Arizona. Now, researchers have a trove of ...

The largest 3D map of the universe reveals over 47 million galaxies, but dark energy remains an unsolved mystery.

Even before the first stars lit up the Universe, the Cosmos was not the cold place most researchers once imagined. New results suggest that the so-called cosmic “dark ages,” the muted era between the ...

A massive cosmic milestone has just been reached: scientists have completed the largest high-resolution 3D map of the ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Whether the universe will “end” at all is not certain, but all evidence suggests it ...