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

Astronomers studying how elements heavier than iron were produced in the early Milky Way have identified a distinct series of epochs of galaxy-wide chemical formation. This evolutionary timeline ...

But even the mass of a brown dwarf isn't enough to overcome the Coulomb barrier and start up stellar fusion. Fusion takes so much energy that some elements, up to the atomic mass of iron, are only ...

Two professors from Arizona State University and one from the University of North Carolina at Chapel Hill are fascinated by stars and elements they create.

Astronomers have seen a lot of stars explode, but one unusual stellar death is forcing them to rethink what they thought they ...

Astronomers have glimpsed the inner structure of a dying star in a rare kind of cosmic explosion called an "extremely ...

Flares from a supermagnetized star may have generated as much as 10 percent of our galaxy's heavy elements.

Until now, scientists thought stars and galaxies formed first, and black holes appeared later after the earliest stars ran ...

Two factors result in so many different types of stars: the size of the clouds they are born from and what kinds of elements they contain.

These stars formed new chemical elements, which enriched the universe and allowed the next generations of stars to form the first planets.

These stars formed new chemical elements, which enriched the universe and allowed the next generations of stars to form the first planets.