God of the Underworld is certainly a proper name for this planet. The planet is almost 6 billion kilometers from the sun and receives little light or warmth from it. The planet is frozen and engulfed in near darkness. Discovered in 1930 by Clyde W. Tombaugh, very little is known about the planet and no spacecraft has ever visited there.

Pluto is the farthest planet from the sun, but not always. It has a very eccentric orbit and, at times, will actually loop inside the orbit of Neptune. This only lasts for about 20 years, a small portion of Pluto's 249 year orbit about the sun. On February 11th, 1999 Pluto crossed out of the orbit of Neptune to return to being the farthest planet from the sun and will remain that way until the year 2226. Pluto is actually slightly off of the ecliptic and will never collide with Neptune during its orbit.

Pluto, similar to Uranus, is tipped considerably, around 122 degrees.