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, ...

Besides being a point of light, a star is a luminous, spherical mass of plasma, enough to hold itself together under its own gravity. On its own, though, gravitational rounding isn't enough. What ...

Scientists led by Tel Aviv University’s Tomer Shenar, with Hugues Sana of KU Leuven and Julia Bodensteiner of the University ...

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

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.

Stars form in the universe from massive clouds of gas. European Southern Observatory, CC BY-SA For decades, astronomers have wondered what the very first stars in the universe were like. These stars ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Luke Keller, Ithaca College (THE CONVERSATION) For decades, astronomers have wondered ...

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