Neptune’s supersonic winds and icy storms revealed a planet so extreme that it forever changed our picture of the solar system. The discovery of Neptune in 1846 was not just the triumph of mathematics ...

WASHINGTON (Reuters) - An odd planet the size of Neptune, made mostly of hot, solid water, has been discovered orbiting a nearby star and offers evidence that other planets may be covered with oceans, ...

Researchers from the University of Zurich and the NCCR PlanetS are challenging what we know about the planets of our solar system by suggesting that Uranus and Neptune may be more rocky than icy.