In a glimpse of the early universe, astronomers have observed a galaxy as it appeared just 800 million years after the Big ...

The tiny pantheon known as the Asgard archaea bear traits that hint at how plants, animals and fungi emerged on Earth.

For the first time, scientists have mapped vast, continent-scale river drainage systems on Mars — ancient networks that may ...

Bennu samples reveal biological sugars, a strange, gum-like material, and ancient stardust that shed light on the early solar ...