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

Now, a new Nature study points to an answer by catching four planets at a stage most systems never show us: The awkward, ...

SpaceX will launch NASA's next exoplanet mission on Sunday morning (Jan. 11), and you can watch the action live. A Falcon 9 rocket carrying about 40 payloads, including NASA's Pandora exoplanet ...

Thanks to the discovery of thousands of exoplanets to date, we know that planets bigger than Earth but smaller than Neptune ...

Scientists have identified an unexpected way to study the hidden space weather of distant stars by observing strange, ...

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

Jupiter, as always, is a dazzling object, shining among the stars of Gemini the Twins. It reaches opposition on Jan. 10; this ...

The upcoming year will offer a blood-red moon, spectacular meteor showers and the first glimpse of the sun’s corona since ...

With sapphire waterfalls, lava rain and orbits around dead stars, these distant worlds push the limits of what’s possible.

Choose your fighter for the origin of water on Earth! Was it always here or did it come to this planet from somewhere else in ...

So far, humanity has yet to find its first "exomoon"—a moon orbiting a planet outside of the solar system. But that hasn't ...

A four-planet system reveals remarkable insights about how planets form and how they change during their lifetime.