The coldest and densest molecular gas clouds in the interstellar medium can have temperatures of 10 K (-505 °F/-263 °C), ...

Astronomers have heard the faint hum of gravitational waves echoing throughout the universe for the first time. For nearly a decade, scientists have been hunting for the gravitational wave background, ...

But there are several important anomalies, including a widely debated one called the Hubble tension. It is named after Edwin ...

Scientists used Cosmic Microwave Background data to challenge our understanding of the universe's shape. Here's what they ...

Scientists may have identified the gravitational waves that make up some of the universe’s background, not just those coming from unusual events like black hole collisions. New Atlas reports that the ...

(Image: Stephan's Quintet, also known as the Hickson Compact Group 92, taken by the Hubble Space Telescope. Stephan's Quintet is a group of five galaxies, but group member NGC 7320, at upper right, is ...

New research suggests the universe may be lopsided. Cosmic microwave background and galaxy data hint at directional differences, challenging cosmology’s assumption of uniformity and standard ...

The fabric of the universe is constantly rippling, according to astronomers who have discovered a background buzz of gravitational waves. These waves may be produced by supermassive black holes ...

Scientists just got a valuable tool in their quest to understand the cosmic microwave background radiation that persists from the earliest days of the universe. The South Pole Telescope recently ...

Astronomers have developed a way to detect the ultraviolet background of the universe, which could help explain why there are so few small galaxies in the cosmos. Astronomers have developed a way to ...

Even stars can get lost in space. Scientists who shot a rocket up beyond Earth’s atmosphere for a matter of minutes have made a remarkable discovery about the diffuse background light that permeates ...

Astronomers have developed a new technique to detect the cosmic ultraviolet background radiation that keeps the universe ionized and hot. Their findings provide clues as to why astronomers observe ...