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 extraterrestrial beings.

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, galactically speaking. Unfortunately, the planet HD 20794 d does not ...

The planets in that system are actually in resonance with each other – meaning the outermost ... such as probing the existence of extraterrestrial life, in solar systems where the exoplanets ...

According to astronomers, there are approximately 200 billion trillion stars in our observable universe — chances are, ...

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 ...