A new study analyzes three asteroid and two meteorite samples to see if space rocks smacking into Earth could’ve helped ...

As much as 45 oceans’ worth of hydrogen may be in Earth’s core, scientists reported, suggesting most of Earth’s water was ...

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

Life on Earth may exist thanks to an incredible stroke of luck — a chemical sweet spot that most planets miss during their ...

The new plot twist is that in order to keep enough nitrogen and phosphorus near its surface, a planet has to start out with exactly the right amount of oxygen in its mix.

Life’s story may stretch further back than scientists once thought. Some genes found in nearly every organism today were already duplicated before all life shared a common ancestor. By tracking these ...

Amino acids, the building blocks necessary for life, were previously found in samples of 4.6-billion-year-old rocks from an ...

Solar activity during Solar Cycle 25 has superheated Earth's upper atmosphere, puffing it outward and accelerating Swift's ...

Plants could play a central role in sustaining human life on the Moon, Mars and beyond, according to a new international Viewpoint.

The catastrophic impact of an asteroid 66 million years ago brought death and devastation on Earth—but also fascinating new ...

Oxygen is everywhere on Earth today. But that hasn’t always been the case. Scientists think oxygen only became a lasting part ...