How long does it take Pluto to orbit the sun? Learn more about how this planet makes one lap around our Solar System.

In the remote outer reaches of planetary systems, far beyond the orbit of known planets, enormous and mysterious worlds ...

The Solar System might not be as quiet and orderly as we think. Imagine one day looking up and seeing something strange in ...

A little-known population of asteroids sharing Venus's orbit has intrigued scientists. Their unstable trajectories could ...

According to the National Weather Service, the summer solstice will occur on Friday at 10:42 p.m. Eastern time (it will be ...

If this doesn't seem like a big deal, consider that every image you have ever seen of the sun was taken from around our ...

A new paper examining and simulating the formation of wide-orbit planets has put the chances of our own Solar System ...

On Earth, depending on where you are, the analemma can be at different angles, though it always traces out this ...

Webb has captured a frigid exoplanet in a wildly tilted orbit, revealing a system shaped by past planetary violence and ...

Keep an eye out for June’s full strawberry moon, which will appear low in the Northern Hemisphere, as well as the Milky Way ...