Earth

Planets, Solar System

The northern lights: A history of aurora sightings

Solar System

The origin of Earth’s helium

Solar System

Earth’s first set of secondary impact craters found in Wyoming

Solar System

What did the end look like for dinosaurs?

Human Spaceflight, Planets, Solar System

Efforts to colonize Mars could have a negative impact on global health

Solar System

Ask Astro: How is Earth the only known planet with active plate tectonics?

Solar System

Cosmic-ray scans to explore hidden secrets of Great Pyramid of Giza

Planets, Solar System

Icy, Earth-like worlds may be rare

Solar System

How drones found the meteorite that lit up the Australian night sky

Solar System

An asteroid impact could wipe out a city — but NASA has plans to prevent a catastrophe

Solar System

Space archaeology takes aim at Earth

Solar System

Ice holds evidence of ancient, massive solar storm