Astronomers have been confounded by recent evidence that the universe expanded at different rates throughout its life. New ...

Astronomers have identified a quasar that may help explain how the universe’s “dark ages” finally ended. Astronomers have ...

A new study suggests that the explosive deaths of the universe's earliest stars created surprising quantities of water that ...

Scientists at the PHENIX experiment at RHIC have uncovered compelling evidence that even collisions involving small nuclei ...

Young supernovas could have spread water out into the cosmos, causing planet formations earlier than originally thought.

Researchers studied how the universe’s structure changed over time. They found that the universe is less clumpy than expected ...