Tiny life forms tucked into debris from an asteroid hit could catapult to other planets—including Earth—and survive, a new ...

Scientists might have just found Earth's icy, distant cousin a few hundred million light-years away. HD 137010 b is one of ...

The Planetary Health Check is a key monitor of earth's vital signs—and will guide action for a more sustainable world.

Add Yahoo as a preferred source to see more of our stories on Google. Some exoplanets, like the one shown in this illustration, may have atmospheres that could make them potentially suitable for life.

Planetary systems such as our solar system take hundreds of millions of years to evolve. Since humanity has only existed for a sliver of that time, astronomers have only observed planetary systems at ...

When you hear about planetary transits and movements, it might sound complicated, but it doesn’t have to be. The planets are always moving, and just like the moon affects the tides, these celestial ...

Add Yahoo as a preferred source to see more of our stories on Google. Our planet is sick, and its life-threatening symptoms are getting worse, a new report warns. Earth has been pushed past multiple ...

For decades, many scientists have relied on the "hard steps" model to suggest that intelligent life is rare — the improbable result of a series of unlikely evolutionary leaps. But new research by ...

Over the next decade, the fields of planetary science and astrobiology will be driven by key questions that can be categorized into four broad themes: the origins of the solar system, understanding ...