An international team has confirmed the discovery of a super-Earth orbiting in the habitable zone of a nearby sun-like star.

A mysterious radio signal from a distant planet has sparked excitement among astronomers, hinting at the tantalizing ...

Why do astronomers look for signs of life on other planets based on how life is on Earth? Couldn’t there be totally different kinds of life on other planets? – Henry, age 13, Somerville ...

UK researchers have confirmed the existence of a “super Earth” located 20 light-years away that could reveal the existence of ...

Samples of organic matter returned from the asteroid Bennu support the theory that asteroids could have brought the building ...

This would render half the planet too hot for life, the other half too cold. The midline, though, might be temperate enough for life. As it happens, there’s a rocky planet, called Proxima ...

A super-Earth planet that dips in and out of its star's habitable zone has been discovered just 19.7 light-years away.

All seven of the other planets in our solar system are about to become visible at once in a great planetary alignment – ...

A suspected planet that appears well-suited to life has had its existence confirmed – and it’s very much in our neighborhood, ...

One is that life's building blocks were delivered on or in meteorites. The other is that those building blocks came together spontaneously via geochemistry in our planet's early environment.

The building blocks of life could have been delivered to Ceres by one or more space rocks from the outer asteroid belt.