Uranus

Uranus is on the threshold of human vision, Will said.

Skywatchers are in for a treat this week as seven planets - Mars, Jupiter, Uranus, Venus, Neptune, Mercury, and Saturn will all be briefly visible in the evening sky.

That is why astrobiologists are increasingly turning their eyes toward icy bodies like the Jovian moons of Europa and Ganymede, Saturn’s moons Titan and Enceladus, Uranus' moon Miranda and the dwarf planet Ceres.

Miranda is one of the moons orbiting the planet Uranus in the Solar System.

These are just two proposals that planetary scientists have come up with for what lies beneath the thick, bluish, hydrogen-and-helium atmospheres of Uranus and Neptune, our solar system's unique, but superficially bland, ice giants.