Neptune is the eighth and most distant planet — a frigid ice giant of methane-blue cloud and the fiercest winds in the Solar System. So far from the Sun that sunlight is 900 times fainter than on Earth, it marks the outer edge of the planetary frontier.
Neptune is the only planet discovered by prediction rather than observation. In 1846, astronomers noticed Uranus wasn't moving as it should — and calculated where an unseen world must be tugging on it. They pointed a telescope at the spot, and there it was. The power of pure mathematics.
Despite receiving almost no warmth from the Sun, Neptune has the fastest winds in the Solar System — reaching 2,100 km/h, faster than the speed of sound on Earth. Dark storms the size of our planet appear and vanish in its deep blue methane skies.
Neptune's largest moon Triton orbits backwards — a sign it was captured from the Kuiper Belt. It is one of the coldest places in the Solar System at −235°C, yet still erupts nitrogen geysers. A frozen world full of surprises at the edge of the dark.
“The last lamp before the dark — and proof that we can find what we cannot yet see.”
— CEO GALILEO