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

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 ...

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 cosmos we ...

In 1925, Edwin Hubble's observation of Cepheid variables in the Andromeda galaxy revolutionized astronomy, proving the ...

Astronomers using the Webb Telescope may have found a new type of object: cold, glowing black hole stars from the early ...

The universe exists because matter and antimatter are not good friends. Is there a scientific reason why the universe exists?

Massive stars have always puzzled scientists—how do they grow so quickly despite fierce radiation pushing material away? New high-resolution ALMA observations suggest that instead of relying solely on ...

When the "little red dots" were first discovered in 2022, scientists thought the objects might be galaxies as mature as the Milky Way, which is about 13.6 billion years old. That's because galaxies ...

Chemistry in the first 50 million to 100 million years after the Big Bang may have been more active than we expected.