We've Found A Hidden Ocean On Enceladus That May Harbor Life

It's turning out that the outer reaches of the solar system may be more hospitable to life than we ever imagined. Gravity measurements made by Cassini have confirmed that Enceladus, a tiny moon orbiting Saturn, hosts a subsurface ocean in its southern latitudes. Astronomers are now saying it's potentially habitable. » 4/03/14 11:00am 4/03/14 11:00am

In the days when human-made structures cover the moon

On clear evenings, Jacen and Jenn would play their favorite game, pointing at the moon and imagining what the people there were doing at that very moment. What Jenn didn't know was that Jacen fell asleep each night dreaming of working a lunar greenhouse, staring out the windows back at Earth. A digital composition by … » 11/23/13 5:30pm 11/23/13 5:30pm

The weirdest moons in the solar system, and what it would look like to…

It would sometimes seem as though there are two solar systems: One including planets, and another including moons. Until recently, most books about the solar system focused on the planets, stopping only to acknowledge the existence of their satellites with a kind of half-embarrassed nod. They would be discussed as a… » 11/10/11 8:00am 11/10/11 8:00am