The way people think of the Solar System has changed many times throughout history. Before the development of the telescope, these ideas were based on what could be seen with the naked eye.

Despite common assumptions, the disk of our Solar System is warped, and the planets travel around the Sun in slightly eccentric (or oblong) orbits. Scientists now think that a mysterious object ...

When I renovated my home in New York a few years back, a rooftop solar system was high on the wish list. Unfortunately, a slew of unexpected structural issues torched our budget, pushing solar to ...