The second of the so-called J-missions, the mission was crewed by Commander John Young, Lunar Module Pilot Charles Duke and Command Module Pilot Ken Mattingly.

John Young and Charles Duke spent 71 hours — just under three days — on the lunar surface, during which they conducted three extra-vehicular activities, or moonwalks, totaling 20 hours and 14 minutes.

On the surface, Young and Duke collected of lunar samples for return to Earth, while Command Module Pilot Ken Mattingly orbited in the Command / Service Module above to perform observations.

After Young and Duke rejoined Mattingly in lunar orbit, the crew released a sub-satellite from the Service Module.

On the border of the insignia, there are sixteen stars, representing the mission number, and the names of the crew members: Young, Mattingly Duke.

John Young and Charles Duke train at the Rio Grande Gorge in New Mexico.

During the second half of the day, John Young and Charlie Duke again entered the Lunar Module to power it up and check its systems, as well as perform housekeeping tasks in preparation for lunar landing.

After entering lunar orbit, Young, Duke and Mattingly began preparations for the Descent Orbit Insertion ( DOI ) maneuver to further modify the spacecraft's orbital trajectory.

Young, Mattingly and Duke continued preparing for Lunar Module ( LM ) activation and undocking shortly after waking up to begin flight day five.

It was decided that Young and Duke would visually inspect the boom after undocking from the CSM in the LM.

Despite entering the LM forty minutes ahead of schedule, Young and Duke completed preparations only ten minutes early due to numerous delays in the process.

With the preparations finished, Young and Duke undocked in the LM Orion from Mattingly in the Command / Service Module Casper 96 hours, 13 minutes, 13 seconds into the mission.

For the rest of the two spacecrafts ' pass over the near side of the Moon, Mattingly prepared to shift Casper to a circular orbit while Young and Duke prepared Orion for the descent to the lunar surface.

After several hours of analysis, however, mission controllers determined that the malfunction could be worked around and Young and Duke could proceed with the landing.

Because of the delay, Young and Duke began their descent to the surface at an altitude higher than that of any previous mission, at.

The Lunar Module Orion, with Young and Duke inside, landed north and west of the planned landing site at 104 hours, 29 minutes, and 35 seconds into the mission, at 2: 23: 35 UTC on 21 April.

After landing, Young and Duke began powering down some of the LM's systems to conserve battery power.

Young and Duke then settled down for their first meal on the surface.

The next morning, flight day five, Young and Duke ate breakfast and began preparations for the first extra-vehicular activity ( EVA ), or moonwalk, of the mission.

Duke handed Young a jettison bag, full of trash, to dispose of on the surface.

" Charles Duke soon descended the ladder and joined Young on the surface, becoming the tenth and youngest human to walk on the Moon at age 36.

After ALSEP deployment, Young and Duke collected samples in the vicinity.

There, at a distance of from the LM, Young and Duke sampled material from the vicinity of Flag Crater, which scientists believed penetrated through the upper regolith layer to the underlying Cayley Formation.

There, Duke took pictures of Stone Mountain and South Ray Crater while Young deployed a magnetic field experiment.

Young David used his stepfather's name after he entered show business as a child.

Boys served as apprentices in the Pimpfen (" cubs ") beginning at the age of six, and at age 10, entered the Deutsches Jungvolk (" Young German Boys ") and served there until entering the Hitler Youth proper at age 14.

In 1896, they returned to Massachusetts and Keller entered The Cambridge School for Young Ladies before gaining admittance, in 1900, to Radcliffe College, where she lived in Briggs Hall, South House.

Young postulated that we each had a pre-spirit " intelligence " that later became part of a spirit " body ", which then eventually entered a physical body and was born on earth.

The Marshal's career entered a new phase in 1170 when he was appointed to the household of Henry the Young King, eldest surviving son of Eleanor and her second husband Henry II of England, crowned that year as associate king to his father.

West Jordan received its name from Mormon settlers who entered the Salt Lake Valley in 1847 under the leadership of their prophet, Brigham Young.

Young George attended the Mount Hope Institution in Baltimore and entered the United States Military Academy ( West Point ) in 1831, chosen primarily for financial reasons.

In the 1950s, honky tonk entered its golden age, with the massive popularity of Webb Pierce, Hank Locklin, Lefty Frizzell, Faron Young, George Jones, and Hank Williams.

Young Wyttenbach entered the University of Marburg at the age of fourteen, and studied there for four years.

In 1975, he released the Grammy-winning " Misty ," which became his biggest country hit ( reaching number three on the country charts and number 14 on the pop charts ); he also entered the country Top 40 with a doo-wop version of " Indian Love Call ," " Everybody Needs a Rainbow ," and a ballad version of " Young Love " in early 1976.

Young Thomas entered Harvard College at twelve, graduating in 1727.

Thomas Young served as the other of Bristol's two MP's during his half-brother William II Canynges's terms as MP in 1450 and 1455, and before 1450 entered into the household of Richard, Duke of York ( d. 1460 ), the Yorkist contender for heirship to the Throne then occupied by Henry VI ( 1422-1461 ).

Pamela's romance with Nick developed and her mother, the lovable but meddling gossip Sadie Hargreaves ( Barbara Young ), entered the storyline.

Young Magee entered Trinity College, Dublin with a scholarship at thirteen.

Young Franck and his brother entered the Conservatoire in October, 1837, César-Auguste continuing his piano studies under Zimmerman and beginning composition with Aimé Leborn.

Young entered the 1998 season at age 37 and some began to wonder if his skills would diminish because of his history of injuries and a general decline in his game due to age.

After graduation, Young entered the United States Navy.

That record, however, was disappointing because Saberhagen had entered the All-Star break with a 15 – 3 record and another Cy Young Award seemingly in the bag.

After playing a small number of festivals in 2002, Strapping Young Lad entered the studio in September of that year, to record their third album.

Young Ted's start in music came when he entered a contest, hoping to win a pony.

Despite having alienated many of his party colleagues, Young entered Cabinet when National won the 1975 elections.

Following up on their success, Soilwork entered the studio again in late 2001 to record the follow-up to A Predator's Portrait with Devin Townsend ( Strapping Young Lad, Devin Townsend Band ) and Fredrik Nordström.

In April 2012, after being ousted from the crew back in 2008, Young Buck has entered talks to work with the label.