Scientists have discovered more than 6,000 planets beyond our solar system. What if some of them aren't planets at all, but ...

Spectacular clouds swirl across the surface of Jupiter. These clouds contain water, just like Earth's, but are much denser on ...

Since the Kepler Space Telescope began its prowl for exoplanets in 2009, it has uncovered a strange pattern among these alien ...

We live in a very exciting time: answers to some of the oldest questions humanity has conceived are within our grasp. One of ...

What was originally thought to be a planet orbiting the Fomalhaut star was probably just the fallout of a wild collision.

Shining in the constellation Gemini near the bright stars Pollux and Castor, Jupiter's opposition is the best time to see the ...

Why Can't We Find Planet 9? Deep in the outer reaches of our solar system, far beyond Neptune and Pluto, something massive is ...

Explore the wonders of our solar system in "25 Insanely Cool Things In Our Solar System"! WATCH OUR OTHER VIDEOS: ►25 ...

Discover why the solar system's planets are arranged as they are, shaped by formation conditions and planetary migration.

Saturn reigns supreme when it comes to the number of moons orbiting any solar system planet. Including the 128 ...

A rare triple conjunction of Venus, Mars and Mercury is happening on the opposite side of the solar system to where Earth is, ...

Jupiter currently shines as a brilliant silvery "star" in the constellation Gemini the Twins, low in the east-northeast sky ...