Forget what you learned in science class. The solar system is completely unhinged. We're talking oceans bigger than Earth's hiding under ice, rivers made of liquid methane, and moons orbiting entirely ...

We may not think about our planet on a day-to-day basis, but the world we live in is a pretty interesting place. The third rock from the Sun—and to this day, the only one with known intelligent ...

It used to be the farthest planet from the Sun in our Solar System, until it was declassified. It's an icy relic in the Kuiper Belt on the edge of our Solar SYystem, and has only been visited once, by ...

Add Yahoo as a preferred source to see more of our stories on Google. Yes, we've all been taught that the Earth is not flat, but it may shock you to learn that it's not perfectly spherical either. As ...

Ah, Earth. We may not think about our planet on a day-to-day basis, but the world we live in is a pretty interesting place. The third rock from the Sun—and to this day, the only one with known ...