Most planets in our solar system are tilted. Earth’s 23-degree tilt gives us our seasons, while Mars sits at just over 25 degrees. Then you have the overachievers: Uranus is essentially lying on its ...

The interiors of ice giant planets like Uranus and Neptune could be home to a previously unknown state of matter, according ...

Neptune is the solar system's most distant planet, a cold, blue ice giant sitting nearly 30 times further from the sun than Earth. At that remote distance, temperatures plunge to nearly minus 200 ...

Neptune from Voyager 2 spacecraft, c1980s. The Voyager 2 space probe was launched by NASA in August 1977. The purpose of the Voyager programme was to study the outer Solar System. Artist NASA. (Photo ...

WASHINGTON — Frigid and far-flung Neptune, our solar system’s outermost planet, is adding to its reputation as an enigmatic world, with astronomers puzzled by a surprising drop in its atmospheric ...