Some 5 billion years from now, the Sun will expand and become a red giant. And Earth might be just in the way... If humans ...

Low-Earth orbit is more crowded—and fragile—than it looks. Satellites constantly weave past each other, burning fuel and ...

Twin siblings, twin peaks, twin cities, twin planets... Two earths, one solar system. How would that work?

It was long thought, up until recently, that asteroids and comets delivered Earth's oceans during the very early Solar System ...

Despite its small size, Mars seems to have a huge impact on the orbital cycles that govern Earth’s climate, especially those ...

When a solar storm strikes Earth, it can disrupt technology that's vital for our daily lives. Solar storms occur when ...

The atmospheric carbon dioxide was thought to be the result of the oxidation of oxygen molecules in the exosphere. As a ...

We have all been taught in school that planets revolve in the same direction as the Earth, i.e., in the counterclockwise ...

For a long time, scientists assumed that Earth's water was delivered by asteroids and comets billions of years ago. This coincided with the Late Heavy Bombardment (ca. 4.1 to 3.8 billion years ago), a ...

3I/ATLAS is the third interstellar visitor ever to visit the solar system having been formed around a distant star. Tune in ...

A new NASA study using Apollo lunar soil samples challenges a long-held theory. It suggests meteorites were not the primary ...

New research suggests Earth’s water came from sources other than meteorites, challenging long-standing theories on planetary ...