The first generation of stars that were born in the universe are a mystery. We can estimate when they existed and even how ...

Astronomers studying a distant galaxy using the James Webb Space Telescope (JWST) have found the best candidates yet for the universe’s first stars. These so-called Population III stars arose shortly ...

The James Webb Space Telescope (JWST) is allowing astronomers to examine distant galaxies in the far reaches of the early universe for the first time. Some of these have chemical signatures that seem ...

Supernovae aren't one of the JWST's main science themes, but the perceptive telescope is full of surprises. Recently, it ...

In the dense environment of the early universe, dark matter particles would collide with, and annihilate, each other, ...

"We really needed the sensitivity of JWST. We also needed the 100 times magnification from gravitational lensing from a galaxy cluster between us and LAP1-B." Astronomers have discovered that the ...

If not in visible stars and galaxies, the most likely hiding place for the matter is in the dark space between galaxies.

A surprisingly mature spiral galaxy named Alaknanda has been spotted just 1.5 billion years after the Big Bang—far earlier ...

Long ago, before galaxies formed into shapes we are familiar with today and before planets formed, the earliest stars ignited the young cosmic clouds. If you stood inside one of those ancient ...

Long before starlight filled the cosmos for the first time, the young universe may have been simmering, according to a new study. The findings suggest that about 800 million years after the Big Bang, ...