This weekend, the world lost a true pioneer and reluctant hero, Neil A. Armstrong, the first man to set foot on the Moon. At the age of 82, Armstrong passed away due to complications resulting from a heart procedure. He earned his flight certificate at age 15, before he could even drive, and went on to study aerospace engineering. By age 20, he was a U.S. Navy Aviator, flying missions during the Korean War, and shortly afterward, he became an experimental research test pilot. Selected for the U.S. astronaut program, he first orbited the Earth in 1965, commanding NASA's Gemini 8 mission. Armstrong was later chosen to not only command the Apollo 11 mission to the moon, but to be the first person out the hatch, placing the first human footprints on lunar soil. It was his last mission to space -- on returning to Earth, after months of goodwill tours and interviews, Armstrong returned to a private life in his home state of Ohio. Here is a farewell to Neil Armstrong, who spent 82 years on this planet, and a few precious, historic moments on another world.