NASA researchers got a rare chance to study Uranus' atmosphere and rings this month, when the ice giant passed between Earth ...

Earth" planet was discovered by researchers. It is not believed these planets are more common than previously thought.

Astronomers have discovered that super-Earth exoplanets are more common across the universe than previously thought. While it can be relatively easy to locate worlds that orbit close to their star, ...

The predawn hours of April 28 will see a planetary triangle form in the night sky, as Venus makes a close approach to Saturn following a conjunction, while Neptune, invisible to the naked eye, will ...