Pluto orbits beyond the orbit of Neptune. It is much smaller than any official planet and is now classified as a Dwarf Planet.
Pluto is the smallest of the seven Moons of the Solar System (Io, Europa, Ganymede, Callisto, Titan and Triton). Pluto (Greek-hell) is Lord of the underworld.
1- Is Pluto still a planet?
Yes, but it's a different kind of planet now. Many of us grew up thinking that there were 9 planets in our solar system: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto. In 2006, the International Astronomical Union (IAU) caused great controversy when it reclassified Pluto as a dwarf planet. Astronomers began to find many other objects in our solar system that are the same size as Pluto. And so the IAU created a new category it called "dwarf planets": Pluto, Ceres, Eris, Makemake and Haumea. Scientists expect many more dwarf planets to be confirmed. The planet Ceres was explored by the NASA spacecraft.
2- Where is Pluto located?
About 5.8 billion kilometers from the sun in the Kuiper Belt, a disk-shaped region of space beyond Neptune that is home to thousands of other icy objects. The Kuiper Belt is named after American-Dutch astronaut Gerard Kuiper, who theorized the existence of small objects beyond Neptune in the 1950s.
3- How big is Pluto?
It has the mass of the United States of America, said the principal investigator of the "New Horizons" probe, Alan Stern.
4- Does Pluto have moons?
There are five: Charon, Nix, Hydra, Kerberos and Styx
5- What is the weather like on Pluto?
Very cold. It is about 375-400 Fahrenheit (200 degrees Celsius) below zero.
6- Does Pluto have gravity?
Not much. Scientists say that a person weighing 45 kg on Earth weighs 3.1 kg on Pluto.
7- Does Pluto have an atmosphere?
Scientists say it has a thin atmosphere and that the New Horizons probe has the instruments to learn about it.

8- What color is Pluto?
Red on brown.
9- Who discovered Pluto?
Pluto was named Planet X by Percival Lowell, founder of the Lowell Observatory in Arizona. He was sure that there was another planet beyond Neptune, but despite his efforts he died in 1916 without being able to discover the planet. Amateur astronomer Clyde Tombaugh in Kansas was hired at Lowell Observatory to continue research and discovered on February 18, 1930 that Pluto existed.
10- How was Planet X, Pluto?
It was 11-year-old Venetia Burney from Oxford, England, who suggested the name.
11- Is Pluto at the bottom of our solar system?
No, scientists think there are thousands of other worlds beyond Pluto.
12- Can I see the Planet Pluto with my own eyes?
Like Clyde Tombaugh, you can see it, but only through a good telescope.