People always want to know what will happen to Earth when the sun eventually swells up as a red giant. For one thing, the expanding sun will turn the inner planets into cinders. It will almost ...

Can life survive in the solar system once the sun dies and becomes a red giant star? New research suggests there may be a narrow window of possibility for life to persist on the icy moons of the outer ...

Mars, Europa and Enceladus are the three most promising locations in the solar system to search for life living off cosmic rays. Cosmic rays could be a vital source of energy for life on icy moons, on ...

Astronomers like to think on the big scale, whether it's measuring the brightness of galaxies millions of light years away, or modeling how our own sun and solar system formed billions of years ago.

New research suggests there may be a narrow window of possibility for life to persist on the icy moons of the outer solar system. Can life survive in the solar system once the sun dies and becomes a ...

Cosmic rays could be a vital source of energy for life on icy moons, on Mars, or even on rogue planets that wander alone between stars; it's possible, scientists say, that the phenomenon could create ...