A new study suggests spacecraft exhaust could quickly contaminate the moon's most scientifically valuable regions, ...

The curious minds at What If explore what would happen if there were only 1,000 people left on Earth.

Every time I see the moon in the sky, it makes me happy. Our natural satellite is so familiar it’s easy to take it for ...

A new look at Earth’s deep past is reshaping how scientists understand the planet’s climate, and it carries a quiet warning ...

"From command and control to autonomous systems operating in GPS-denied environments, many of today's most complex missions ...

Some scientists think that in five billion years, as the Sun ages and transforms into a Red Giant, Earth will be swallowed ...

(Mark Garlick/Science Photo Library/Getty Images) If potted plants always seem to die under your care, you can take solace in ...

A reader (and astronomy expert) gets to grips with this one, pointing out that Earth’s future fate is still uncertain – and ...

A new study suggests that when our star becomes unstable in 5 billion years or so, Earth may avoid being engulfed by its ...

Using complex climate models, researchers have pinned down the point at which life will no longer be able to survive on Earth ...

Astronomers found nearby exoplanet GJ 3378b may be more Earth-like than thought, strengthening its chances of supporting life ...

Elon Musk just made his boldest claim yet about SpaceX's future worth, and Wall Street analysts are scrambling to figure out where fantasy ends and a legitimate price target begins.