If you looked at the churning clouds near Jupiter’s pole, they appear like ocean currents on Earth — as if you’re looking at ...

In a groundbreaking achievement, astronomers have captured a direct image of GJ504b, a distant exoplanet often referred to as ...

Recent flybys of the fiery world refute a leading theory of its inner structure—and reveal how little is understood about ...

Simulations show that the stars’ tug could send Mercury, Venus or Mars crashing into Earth — or let Jupiter eject our world from the solar system.

In this process, the gravitational pull of a second star in a binary system slowly disturbs the orbits of planets around the ...

The solar system’s largest and smallest planets meet in the evening sky, standing 2° apart shortly after sunset.