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Earth's oceans are mysterious, largely unexplored places, but the enormous oceans of Neptune and Uranus have them beat.

An object we thought belonged to the most common category of planet in the galaxy has turned out to be something we've never ...

Planet demographics reveal a puzzling lack of worlds in a certain size range throughout the galaxy F or centuries our solar ...

Ahead of its dance with Saturn on Feb. 24, Mercury should be seen on Feb. 19 at magnitude -1.2 with binoculars 20 minutes ...

The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

Researchers believe they have rediscovered a mysterious star system first spotted in 2011. If true, the alien sun and its ...

Interstellar is without a doubt a timeless movie and in this article, find out about 10 movies like Interstellar you should ...

Due to its slightly longer day than Earth ... Neptune, meanwhile, is so distant that it appears to shift only slowly relative to the background, and its disk spans just 2” — some 1/15 the size ...