How stars are born and die

Stellar evolution is a circle of life — dying stars spew their contents into the galaxy, paving the way for the next generation.

Meet the most extreme stars

Some huge, some small. Some zip, some crawl. The cosmos is full of objects that defy expectations.

Stellar neighbors close-up

Astronomers are learning a lot from the stars in our part of the Milky Way.

The Sun’s lost siblings

Astronomers think it’s possible to identify the stars that formed from the same nebula as the Sun.

Is Eta Corvi a window to our past?

By studying this strange star, astronomers hope to better understand what happened early in the life of our own solar system.

How pulsating stars unlock our universe

RR Lyrae variables allow precise distance measurements, reveal the history of the regions they populate, and trace how galaxies are structured.