Science is always an unfinished project. That’s what makes it so much fun. The process—collecting data, building models to explain how the world works, and then dethroning them with new models—is full ...

The Kepler telescope, which has provided so much information on planetary bodies outside our solar system, was not idly named. Johannes Kepler, who the telescope was named for, was a German astronomer ...

The planets of our solar system move in ellipses. We've known this, so we are told, ever since Johannes Kepler devised his laws of planetary motion in the early 1600s. While it's true that orbits are ...

Before Johannes Kepler’s Third Law, the motions of the planets around the Sun were a mystery. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.