Neptune is the eighth and farthest-known Solar planet from the Sun. In the Solar System, it is the fourth-largest planet by diameter, the third-most-massive planet, and the densest giant planet. It is 17 times the mass of Earth, and slightly more massive than its near-twin Uranus. Neptune's thick atmosphere is mostly hydrogen, with smaller amounts of helium and methane. It is the absorption of red light by methane which gives Neptune its very blue coloration. The average temperature on Neptune is a brutally cold -373 degrees F. Neptune is encircled by six rings. Neptune, like Uranus, is an ice giant. It's similar to a gas giant. It is made of a thick soup of water, ammonia, and methane flowing over a solid core about the size of Earth. Neptune has a thick, windy atmosphere. At its core, Neptune reaches temperatures of up to 7273 K (7000 °C; 12632 °F), which is comparable to the surface of the Sun. The huge temperature differences between Neptune's center and its surface create huge wind storms, which can reach as high as 2,100 km/hour, making them the fastest in the Solar System. Neptune is the most distant planet from the Sun. Neptune is the smallest gas giant. A year on Neptune lasts 165 Earth years. Neptune is named after the Roman god of the sea. Neptune has 6 faint rings. Similar to most planets, Neptune is a volatile world with no solid surfaces. Besides, the desolate planet is no place for human life. Neptune is one of two ice giants in the outer solar system (the other is Uranus). Most (80% or more) of the planet's mass is made up of a hot dense fluid of "icy" materials water, methane, and ammonia above a small, rocky core. Whereas Neptune averages the coldest temperatures in the Solar System, a strange anomaly is the planet's south pole. Here, it is 10 degrees K warmer than the rest of planet. This “hot spot” occurs because Neptune's south pole is currently exposed to the Sun. The average temperature on Neptune is a brutally cold -373 degrees F. Triton, Neptune's largest satellite, has the coldest temperature measured in our solar system at -391 degrees F. That is only 68 degrees Fahrenheit warmer than absolute zero, a temperature in which all molecular action stops. To find life on Neptune, the planet would need to have a source of energy that bacterial life can exploit, as well as a standing source of liquid water. At its surface, the temperature of Neptune dips down to 55 Kelvin. That's very cold, and there's no way liquid water could exist. Scientists believe that an additional unknown gas makes Neptune more colorful than Uranus. Even if you could stand on Neptune, you'd need to hold onto a solid object to keep from flying away. Winds on the planet can reach up to 2,520 kilometers, or 1,5750 mph. Neptune is about 2.8 billion miles from the sun. That's about 30 times farther than the distance from Earth to the sun. Clouds of dust and gas spewing from one of Triton's powerful cryogeysers are partially obscuring a tiny sun, now but one-thirtieth the size as seen from Earth. A trip to neptune will almost take 12 years.

Thank You