Neptunes are the eighth and farthest planet from the Sun in our solar system. They are classified as a gas giant, primarily composed of hydrogen, helium, and methane, which gives them their striking blue color. Neptunes have a dynamic atmosphere with strong winds and storms, including the Great Dark Spot, a massive storm similar to Jupiter's Great Red Spot. Discovered in 1846, Neptune is named after the Roman god of the sea. It has 14 known moons, with Triton being the largest. Triton is unique because it orbits Neptune in a retrograde direction, suggesting it may have been captured by Neptune's gravity.