The man who discovered Pluto remains to be launched to the stars

Clyde William Tombaugh was an American astronomer. He is best known for discovering the dwarf planet Pluto in 1930. He also discovered many asteroids and is also called for serious scientific research of unidentified flying objects.

In memory of the first American to discover a planet in our solar system, the piano-sized New Horizons spacecraft carries a small aluminium canister containing some of Tombaugh's cremated remains, donated by his family. These remains will fly past Pluto with New Horizons on July 14, 2015, and then on past Kuiper Belt objects in the succeeding years. New Horizons will eventually escape our solar system altogether and enter interstellar space. As such, Tombaugh's remains have become the first to be launched to the stars.

The memorial canister, about two inches wide and half-an-inch tall, is attached to the inside, upper deck of the spacecraft. It also includes an inscription penned by Stern:

Interned herein are remains of American Clyde W. Tombaugh, discoverer of Pluto and the solar system's "third zone." Adelle and Muron's boy, Patricia's husband, Annette and Alden's father, astronomer, teacher, punster, and friend: Clyde W. Tombaugh (1906-1997).

(Source)