Even the best telescopes can’t see exoplanets. It’s all about watching for jiggly stars, blue shifts, and transits.

Legend has it that somewhere beyond Neptune and Pluto, there is a ninth planet, with a mass that is five times greater than ...

The ice giant classification is oversimplified as Uranus and Neptune are still poorly understood,' said experts.

New models suggest Uranus and Neptune may hold far more rock than expected, raising questions about how these distant planets formed.

Rocky planets like our Earth may be far more common than previously thought, according to new research published in the ...

United Launch Alliance (ULA) will send another batch of Amazon's Monday morning (Dec. 15), and you can watch the action live — if you're a night owl or a very early riser. A ULA Atlas V rocket ...

Read today's free daily Leo horoscope to see what's in store for you including predictions on love, romance, health, happiness, career, success and more ...