While the composition of gas and dust in a molecular cloud is fairly uniform, everything changes once a star begins to form.

Worlds with liquid water could have formed just 200 million years after the big bang from the remains of the earliest ...

When you first learned about the Solar System, you probably saw diagrams that made it look orderly, with planets arranged in ...

Findings from missions like Rosetta, Hayabusa2, and Osiris-Rex reveal that these compounds existed long before the Sun formed. Scientists believe organic molecules survived planetary formation in ...