Particles that escaped Earth’s atmosphere accumulated on the lunar surface over billions of years. Here’s what you’ll learn ...

Learn how we know the Earth is round, and the science behind the shape of our gravitational field.

The Moon is one of the most charming objects in the night sky, casting its beautiful white light on the Earth. It is also its ...

Doing the persnickety calculations of how fast clocks tick on Mars relative to Earth, two scientists have discovered that ...

Approaching a black hole unleashes extreme tidal forces, stretching and tearing apart matter, including planets like Earth, a phenomenon known as spag ...

Being on the surface of a sizable planet moving at high speed through space, spinning around a yellow star and on its axis, ...

On average, Martian time ticks roughly 477 millionths of a second faster than terrestrial clocks per Earth day. But the Red ...

Earth’s magnetic field has long been framed as a planetary force field, a protective bubble that keeps the worst of the Sun’s ...

NASA’s Carruthers mission will film Earth’s elusive exosphere to understand space weather, atmospheric escape, and planetary habitability. A NASA mission aims to photograph a feature of Earth that is ...

The Avengers have some superlatively powerful members and these ten members of the team could easily destroy the Earth.

In 2005, researchers at the University of Tokyo proposed that some elements from Earth's upper atmosphere might have escaped ...