2. What does Neptune look like? The particles of icy methane in the clouds takes orange and red light waves and absorbs them, which leaves blue light waves to make an escape and create an outward reflection through our eyes. This is the process of how the sunlight is being reflected off to the atmosphere of the planet Neptune that causes its blue appearance

3. Have we explored Neptune?  the only spacecraft to visit Neptune was Voyager 2, which flew by the giant planet in 1989. Voyager 2, which has traveled to more planets than any other probe in history, probably still will be operating as the new probe arrives at Neptune

4. What's Neptune's average temperature?  At its surface, where the clouds of the planet touch space, the temperature of Neptune can dip down to 55 Kelvin. That's -218 degrees Celsius. The average temperature of Neptune is 73 K (-200 Celsius)

5. What's Neptune's atmosphere like?  The atmosphere of Neptune is similar to all the large planets in the Solar System; it mostly consists of hydrogen and helium, with trace amounts of methane, water, ammonia and other ices.

6. How many moons does Neptune have?  Neptune has thirteen moons that we know of with one more waiting for confirmation. The largest moon is Triton. Triton is slightly smaller than Earth's Moon and has active volcanoes which erupt like geysers and eject nitrogen frost over the surface. Some of the other moons of Neptune are Nereid, Proteus, Larissa, Despina, Galatea, Thalassa, and Naiad. These moons are much smaller than Triton and, except for Nereid, were not discovered until the Voyager spacecraft flew by them in 1989.

7. Is Neptune named after a roman god?  Neptune was the name that ancient Romans gave to the Greek god of the sea and earthquakes, Poseidon.

8. How far away is Neptune from the sun? Neptune is 2.795 billion million miles away from the sun. Neptune is the eighth and farthest known planet from the Sun in the Solar System

9. How long does it take Neptune to orbit the Sun?  Neptune orbits much further away from the Sun than the Earth, so its orbit takes much longer. In fact, Neptune takes 164.79 years to orbit around the Sun. That’s almost 165 times longer than Earth takes to orbit the Sun.

10. How big is Neptune?  Of the four giant planets, Neptune is the smallest. Its diameter is roughly 30, 755 miles. This is the measurement taken from a point in the atmosphere where the pressure does not exceed 1 bar. Neptune is four times bigger than earth but is just slightly smaller than Uranus.