Add Yahoo as a preferred source to see more of our stories on Google. (Ianm35/iStock/Getty Images Plus) The Solar System is one of the comforting constants of human existence. No matter what else we ...

We usually think of our Solar System as a calm, well-organized family of planets, but a new study suggests its early days may have been far more chaotic. Instead of the four giant planets we know ...

Add Yahoo as a preferred source to see more of our stories on Google. Some 'water worlds' like Jupiter's moon Europa could potentially be habitable for life. NASA/JPL-Caltech/SETI Institute The search ...

The orbits of our planets and their moons indicate that planets might be missing from our solar system. According to more ...

For the first time since 2008, two new planets are being added to one of northern Maine's most famous — and scientifically accurate — roadside attractions. Dwarf planets Haumea and Makemake are the ...

Our sun is about five times less magnetically active than other sunlike stars—effectively a special case. The reason for this could reside in the planets in our solar system, say researchers at the ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

One of the most notable properties of the giant planets in our solar system—Jupiter, Saturn, Uranus and Neptune—are the extreme winds observed around their equators. While some of these planets have ...

To better understand why the planets have variable compositions, we have to first understand the process of how stars form. While the composition of gas and dust in a precursor molecular cloud is ...

A scale model of the solar system, with each planet depicted in relief on individual square granite markers installed atop concrete bases embedded in the ground. Each planet bears a laser etched ...