There are several candidates for the biggest star in the universe. One of them, VY Canis Majoris, is over 1,500 times the ...

For decades, astronomers have wondered what the very first stars in the universe were like. These stars formed new chemical ...

Pictures are the key to new insights in the field of astrophysics. Such images include simulations of cosmic events, which ...

The period before the first stars illuminated their surroundings is called the Dark Ages. At this time, the universe had cooled enough to become transparent and allow light to travel. But there ...

Understanding how the universe transitioned from darkness to the emergence of stars marks a critical shift known as Cosmic Dawn. Yet, astronomers have struggled to unravel details about the first ...

A team from the Flatiron Institute in New York City calculated that giant flares emitted by magnetars — highly magnetic types of collapsed stars known as neutron stars — could be the long ...

As the universe expands, it feels like it must be spreading out from some initial point. But a physicist explains why that’s not how it works. Hint: space-time is involved.

Understanding how the universe transitioned from darkness to light with the formation of the first stars and galaxies is a key turning point in the universe’s development, known as the Cosmic Dawn.

A radio signal from the dawn of time could help scientists weigh the first stars and reveal how they lifted the cosmic darkness.

This image is from a ground-breaking simulation of the universe's primordial gas clouds. The universe's very first stars formed in these clouds. The color scale shows gas density.