Neptune - Rotating Model
Credit: Almond/NASA

Neptune is a blue Gas Giant like Uranus and is the furthest planet from the Sun.

Like Uranus, it contains a higher proportion of "ices" such as water, ammonia and methane, and it is the methane that gives Neptune its blue colour. The white streaks you see are high level cloud layers that indicate active weather systems in the planet's atmosphere.

Neptune's winds are the fastest known on any planet, with speeds approaching 2000 km per hour.

Voyager 2 is the only spacecraft to visit Neptune back in 1989.

Neptune has a dozen small moons and one large one called Triton, i.e. 13 moons in total.

History tells us that Neptune was discovered in 1846, due to the independent mathematical calculations of Urbain Le Verrier and John Couch Adams. They had both predicted its existence due to the odd orbital behaviour of the planet Uranus.