For years, astronomers have been working to piece together the story of our universe, but the critical early chapters ...

Scientists are peering into the universe's mysterious Cosmic Dawn using the faint whispers of hydrogen radio waves emitted ...

Nearly 50 years ago, physicists floated a bold idea: our universe might be stuck in a false vacuum. This state feels stable, ...

Scientists have spent decades searching for a way to uncover the details of these ancient, enigmatic stars. Today, a new ...

"This is a unique opportunity to learn how the universe's first light emerged from the darkness." ...

Is the Hubble constant—a key part of how we measure the expansion of our universe—in a crisis? Some cosmologists say yes.

A faint radio signal beamed over the eons by hydrogen atoms in the early universe that contains important information about ...

Understanding how the universe transitioned from darkness to light with the formation of the first stars and galaxies is a ...

Called the COSMOS-Web field, the project, with data collected by the James Webb Space Telescope (JWST), consists of all the imaging and a catalog of nearly 800,000 galaxies spanning nearly all of ...

The prevailing model of cosmology, called the lambda-CDM model ... (WMAP) project calculated the universe to be 13.772 billion years old. 2. Expanding Spacetime vs. 'Tired Light' ...