When it comes to habitable places in our solar system, the tiny moons of Saturn don’t seem likely candidates. Yet time and time again, they’ve proven themselves to be exciting places for life. Europa, ...

Planets that orbit white dwarf stars should be too hot to host alien life, theories suggest. But a new study accounting for ...

Scientists have found strong evidence of a giant gas planet which could have habitable moons in the nearest star system to our own. The lifeless planet is thought to be four-and-a-half light years ...

The workings of our solar system are roughly the same now as they have been for millions of years. Moons circle their planets, the planets circle the sun, the sun’s magnetic fields and sunspots wax ...

Discovered: Once Earth's ruined we should hightail it for the Tau Ceti system; how reindeers get red noses; one in two men will get cancer; what flying squirrels have in common with Top Gun. A ...

What is the difference between a moon and a planet? Trick question! According to scientific definitions, there often isn’t much of a difference at all. That might seem counterintuitive, but it’s true.

In the hunt for extraterrestrial life, we usually look for planets orbiting sun-like stars and icy moons. But there is ...

The planets have been nicknamed Earth's seven sisters. — -- An international team of astronomers has discovered seven potentially habitable exoplanets — or planets outside our solar system — that ...

There are ‘super-Earths’ and ‘mini-Neptunes’ — categorized because of how their masses compare with those of planets in the ...