World's largest digital camera observes cosmos, capturing detailed images of galaxies, asteroids, and stars changing ...

His team attempted to identify the basic constituents of a universe that’s good at producing stars. “By 'constituents,' I mean ordinary matter, the stuff we are made of—the dark matter ...

The hunt for the first stars, known as Population III stars, may be nearing an end as the James Webb Space Telescope spotted tantalizing evidence for them in one of the earliest galaxies known.

What are stars made of? A century ago, this woman found out—and changed physics forever. In 1925, grad student Cecilia Payne first proposed that stars were mostly made of hydrogen and helium and ...

A new satellite galaxy discovered orbiting the Milky Way is either an incredibly ancient, soon-to-fragment clump of stars or the most dark-matter-dominated dwarf galaxy ever found.

It takes billions of years for such stars to reach these evolutionary stages, so the “nova” nomenclature is somewhat ironic. The term is steeped in history, though, so we’re stuck with it.

If quark stars do indeed exist, they must be very rare, since it's a very narrow window between the conditions needed to make a regular vanilla neutron star and a full-on black hole.