Neptune has a complicated life story, and its moon Nereid might be the only one left standing from the planet’s ...

Our Moon is hostile to life. But this doesn’t mean that moons elsewhere in the universe are inhospitable to life. Far away from the solar system, moons of free-floating planets can keep ...

Far from the Sun’s heat, orbiting the outer planets of the solar system, are moons with oceans of liquid water beneath their frozen surfaces. Keith Cooper finds out how planetary scientists ...

Moons may seem like quiet companions to the planets, but many of them are worlds every bit as fascinating as the planets themselves. Some are covered in oceans, some erupt with lava, and others ...