Earth | Page 5 of 14 | Astronomy.com

The origin of Earth’s helium

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

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

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

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

Planets, Solar System

Icy, Earth-like worlds may be rare

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

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

Space archaeology takes aim at Earth

Ice holds evidence of ancient, massive solar storm

If a planet-killing asteroid threatens Earth, these astronomers have a plan