Over the past three decades, computer models of planetary system formation have gone from fairly crude representations to sophisticated simulations using thousands of different starting points. A ...

Which solar system model is best? For as long as humans could look up at the night sky, we’ve been fascinated with the stars. How far away are they? Where did they come from? What secrets do they hide ...

Real images from probes and telescopes have transformed the Solar System from imagination into direct evidence. These photos reveal planets, moons, rings, storms, and landscapes that changed how ...