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

Space Mysteries: If the universe is 13.8 billion years old, how can a star be more than 14 billion years old?

The universe's biggest stars are 20 times the size of the Earth's sun and at least five times as hot. They go out with a bang.

Understanding the early universe is a foundational goal in space science. We're driven to understand nature and how it evolved from a super-heated plasma after the Big Bang to the structured ...

What is the biggest star in the universe? The largest known star in the universe is UY Scuti. It has an estimated radius of 1.188 billion kilometers.

Atoms may come apart as the Universe’s biggest stars explode Something we found in a particle accelerator could explain massive stars' supernovae.

At an estimated 832,000 light-years across, it is arguably the largest known spiral galaxy, although its tidal arms and distorted shape are likely temporary on cosmic timescales.

New research suggests that primordial black holes could have played an important role in the formation of the universe's first stars, but did they help or hinder?

The question of how the universe's first stars formed has remained mysterious to astronomers, even while they get a better handle on how modern star formation takes place.

Astronomers have come a long way in understanding how stars form today, but the question of how the universe's first stars formed is an enduring mystery. While the topic remains complex and ...