The discovery is just the latest to come from the asteroid sample, which dates back to the dawn of the solar system.

Ancient enzymes show life’s nitrogen signal stayed unchanged for billions of years, helping scientists read early Earth.

A bizarre fossil called Prototaxites, which was the largest life-form on land 400 million years ago, may have been a completely unknown form of multicellular life, according to a new study.

Tiny grains of dust from asteroid Bennu are reshaping how scientists think life’s ingredients formed in space.

In a peer-reviewed analysis, scientists quantify amino acids before and after our “last universal common ancestor.” The last universal common ancestor (LUCA) is the single life form that branched into ...

Hundreds of millions of years before dinosaurs, the tallest things on land were not trees or animals but towering, trunk-like ...