Current theories about its origin provide new clues to the genesis of the solar system Pluto, our sun's most remote and mysterious planet, may once a satellite of Neptune.

Space.com talks to artist and author Martin Vargic, who is turning exoplanets into stunning and intricate art.

When NASA's Voyager 2 spacecraft made its way to outer regions of the solar system in the late 80's, it noticed something odd. Both of the ice giant planets, Uranus and Neptune, lacked what's ...

On Neptune far out in the solar system it’s a different story—but what happens on the ice giant planet nevertheless appears to be inextricably linked to the same solar cycle. Having looked at ...