Neptune is the eighth and farthest planet from the Sun in our solar system. It is known for its striking blue color, which is due to the presence of methane in its atmosphere. Neptune is a gas giant, meaning it is primarily composed of hydrogen, helium, and methane, and it has a dynamic atmosphere with strong winds and storms. Discovered in 1846, Neptune is named after the Roman god of the sea. It has 14 known moons, with Triton being the largest. Neptune's distance from Earth makes it difficult to study, but it remains a fascinating subject for astronomers and space enthusiasts alike.