UChicago-led study analyzes massive galaxy clusters mapped by the Dark Energy Survey, offers new way to probe cosmic laws ...

A faint radio "whisper" from ancient hydrogen reveals the universe was heating up long before it filled with starlight.

An excess of gamma rays in the center of our galaxy could mean scientists have finally detected dark matter particles—or not ...

Only a fraction of the size of the Milky Way, these galaxies have thus far been too faint for most telescopes to spot. Among the hundreds of billions of galaxies that stretch across the known universe ...

Astronomers using the James Webb Space Telescope (JWST) have captured the most detailed look yet at how galaxies formed just a few hundred million ...

Astronomers have discovered a vast and enigmatic bridge of gas stretching across 185,000 light-years, connecting two distant ...

Dark matter makes up about 85 percent of all matter in the universe. It neither emits nor absorbs light, making it invisible ...

Structures known as "zippers" and "twisters" in the early universe may explain why dwarf galaxies tend to line up with each other, as well as hint at how dark matter operates in the universe.

This image combines data from the JWST's MIRI and NIRcam cameras to create a multicolour view of the Hubble Ultra Deep Field. The the green, orange, and red hues come from MIRI and reveal the reddest ...