Scientists think one of Uranus' moons may once have had an ocean roughly 100 miles deep — about 40 times deeper than the ...

Artist’s impression of Ariel on its way to Lagrange Point 2 (L2). Here, the spacecraft is shielded from the Sun and has a clear view of the whole sky. Five thousand detected extrasolar planets and ...

Uranus’ moon Ariel may look like a frozen, airless world today, but new research suggests that beneath its icy crust, it may once have held an ocean more than 100 miles (170 kilometers) deep. That ...

Interest in icy moons has been growing steadily as they become more and more interesting to astrobiologists. Some take the majority of the attention, like Enceladus with its spectacular geysers. But ...

ARIEL, an ESA mission to make the first large-scale survey of exoplanet atmospheres, has announced the winners of its first international Machine Learning Data Challenge and has launched a new project ...

Ariel, one of Uranus' icy moons, may once have concealed a vast ocean more than 100 miles (170 kilometers) deep beneath its ...