A pale blue-green enigma, the planet Uranus has long fascinated astronomers ... in the solar system), from the fact that it may rain diamonds to discovering previously-unknown moons.

Studying a material that even more closely resembles the composition of ice giants, researchers found that oxygen boosts the formation of diamond rain. The team also found evidence that ...

Scientists have speculated for years that diamonds are abundant in the cores of the smaller, cooler gas giants, Neptune and Uranus ... determined that diamond rain is very likely.