New Horizons is an interplanetary
space probe that was launched as a part of
NASA's
New Frontiers program. Engineered by the
Johns Hopkins University Applied Physics Laboratory (APL) and the
Southwest Research Institute (SwRI), with a team led by
S. Alan Stern, the spacecraft was launched with the primary mission to perform a
flyby study of the
Pluto system, and a secondary mission to fly by and study one or more other
Kuiper belt objects (KBOs).
On January 19, 2006, New Horizons was launched from Cape Canaveral Air Force Station directly into an Earth-and-solar escape trajectory. After a brief encounter with asteroid 132524 APL, New Horizons proceeded to Jupiter, making its closest approach on February 28, 2007. The Jupiter flyby provided a gravity assist that increased New Horizons' speed; the flyby also enabled a general test of New Horizons' scientific capabilities, returning data about the planet's atmosphere, moons, and magnetosphere.
Most of the post-Jupiter voyage was spent in hibernation mode to preserve on-board systems, except for brief annual checkouts. On December 6, 2014, New Horizons was brought back online for the Pluto encounter, and instrument check-out began. On January 15, 2015, the New Horizons spacecraft began its approach phase to Pluto.
On July 14, 2015, at 11:49 UTC, it flew 12,500 km (7,800 mi) above the surface of Pluto, making it the first spacecraft to explore the dwarf planet. Having completed its flyby of Pluto, New Horizons has maneuvered for a flyby of Kuiper belt object 2014 MU69, expected to take place on January 1, 2019, when it is 43.4 AU from the Sun.
John Watts Young (September 24, 1930 – January 5, 2018) was an American
astronaut,
naval officer and
aviator,
test pilot, and
aeronautical engineer. He became the
ninth person to walk on the Moon as Commander of the
Apollo 16 mission in 1972. Young enjoyed the longest career of any astronaut, becoming the first person to fly six space missions over the course of 42 years of active
NASA service. He is the only person to have piloted and commanded four different classes of spacecraft:
Gemini, the
Apollo command and service module, the
Apollo Lunar Module, and the
Space Shuttle.
Before becoming an astronaut, Young received his Bachelor of Science degree with highest honors in Aeronautical Engineering from the Georgia Institute of Technology and joined the U.S. Navy. After serving at sea during the Korean War he became a naval aviator, and graduated from the U.S. Naval Test Pilot School (Class 23), setting several world time-to-climb records as a test pilot. Young left the Navy in 1976 with the rank of captain.
In 1965 Young flew on the first crewed Gemini mission, and then commanded the 1966 Gemini 10 mission. In 1969 during Apollo 10, he became the first person to fly solo around the Moon. He then walked on the Moon and drove the Lunar Roving Vehicle on the Moon's surface during Apollo 16, and is one of only three people to have flown to the Moon twice.
Young also commanded two flights of Space Shuttle Columbia: STS-1 in 1981, the Space Shuttle program's first launch, and STS-9 in 1983. Young served as Chief of the Astronaut Office from 1974 to 1987, and retired from NASA in 2004.