It drives the movements of stars and galaxies, but dark matter is invisible. While it remains a colossal mystery, a study ...

"We report the discovery of one of the most distant galaxies known to date," astrophysicist Joris Witstok told Newsweek.

Dark energy may have a completely unknown aspect of physics acting as an accomplice in its efforts to defy gravity, ...

The images of the cosmic microwave background (CMB), which ... "And we're not just seeing light and dark; we're seeing the polarization of light in high resolution. That is a determining factor ...

One of the Holy Grails in cosmology is a look back at the earliest epochs of cosmic history. Unfortunately, the universe's ...

A terrifying glimpse at one potential fate of our Milky Way galaxy has come to light thanks to the discovery of a cosmic ...

It wasn’t until 380,000 years after the Big Bang when particles began to combine, allowing light to travel freely and ending the cosmic dark ages. The cooled remnant of the first light that ...

NEW YORK (AP) — A European space telescope launched to explore the dark universe has released a trove of new data on distant galaxies.

Euclid has opened a new window to the cosmos with its first deep sky data release, revealing millions of galaxies, ...

Cosmic microwave background data support cosmology’s standard model but retain a mystery about the universe’s expansion rate.

Euclid is on a quest to unravel one of the universe’s greatest mysteries: why it's expanding faster and faster. With help ...

Analyzing this cosmic microwave background in high definition has allowed ... Rather than just the transition from dark to light, however, the new images reveal in high resolution the formation and ...