Uranus

Saturn orbits beyond what astronomers call the "snow line" in the solar system, along with other giant planets that host icy moons, including Jupiter, Uranus, and Neptune.

Saturn lies beyond the solar system's "snow line," along with other giant planets that host icy moons, including Jupiter, Uranus, and Neptune.

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.