Across the galaxy, astronomers now see that planetary systems fall into four broad classes, and our own solar system, part of the rare Ordered group, is only one of them. At the same time, discoveries ...

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 ...

If you think interplanetary space is a dangerous place now, with asteroids screaming by at close range and comets crashing into planets with the force of multiple H-bombs, be grateful you weren’t here ...

Forbes contributors publish independent expert analyses and insights. I cover aerospace, astronomy & hosted The Cosmic Controversy Podcast. Although the term itself immediately conjures the sort of ...

All of our solar system’s planets are lining up in the night sky at once this week. This extraordinary celestial event will see the sky scattered with seven visible planets in what is known as a great ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. THE WOODLANDS, Texas — Humans may never venture beyond the moon or Mars to see any other planets ...

Banner image: A glass block marks Saturn's spot in the solar system in a new scale model on the CU Boulder campus. (Credit: CU Boulder) Have you ever wanted to travel to Neptune? Thanks to an updated ...