"The detection of life on Mars is a persistent top priority for explorers of many disciplines, and it is the top science ...

Whether you're a casual fan or a spaceflight enthusiast, see how well you know one of the companies pushing the boundaries of ...

Rewind 3.8 billion years to the end of the solar system's most violent chapter: the Late Heavy Bombardment. This video reveals what happened when the final wave of asteroids and comets crashed into ...

How far could life go — in space and in time? Life Beyond – Chapter 1 explores the possibility of alien life in the context ...

Earth may have a moon today because a nearby neighbor once crashed into us, a new analysis of Apollo samples and terrestrial ...

When a meteor streaks across the sky, it's not just beautiful. It's nature's way of delivering a time capsule to Earth.