Uranus is the seventh planet from the Sun. It is a gaseous cyan-coloured ice giant. Most of the planet is made of water, ammonia, and methane in a supercritical phase of matter, which astronomy calls
William Herschel, discoverer of Uranus
Johann Elert Bode, the astronomer who suggested the name Uranus
Uranus seen through an amateur telescope, shortly after lunar occultation, during the November 2022 lunar eclipse
Size comparison of Earth and Uranus
Neptune is the eighth and farthest known planet orbiting the Sun. It is the fourth-largest planet in the Solar System by diameter, the third-most-massive planet, and the densest giant planet. It is 17
Galileo Galilei may have been the first person to sight Neptune
Urbain Le Verrier mostly successfully predicted Neptune's position
Johann Gottfried Galle was requested by Le Verrier to look for Neptune
John Couch Adams independently calculated Neptune's position