The upcoming year will offer a blood-red moon, spectacular meteor showers and the first glimpse of the sun’s corona since ...

It was almost 100 years ago that Clyde W. Tombaugh discovered Pluto. That was the last planet found until 1992, when humans found another one. But this new planet wasn't in our solar system—it was ...

A special planetary alignment is occurring in late February. Five planets are visible to the naked eye, with two more faintly showing. Here's how, where, and when to see the planets line up. The ...

This month, if you should incline your head slightly upwards at night, you will receive a treat in the form of six of the eight planets visible in the skyline. Mercury, the closest planet to the Sun ...