NASA astronauts Neil Armstrong (left), command pilot, and David Scott, pilot, the Gemini 8 prime crew, during a photo session outside the Kennedy Space Center (KSC) Mission Control Center on March 11, 1966. Both men are wearing full spacesuits and carrying their helmets. NASA/UPI | License Photo
NASA astronauts Neil Armstrong (center), command pilot, and David Scott (right), pilot of the Gemini 8 prime crew are suited up for water egress training aboard the NASA Motor Vessel Retriever in the Gulf of Mexico on January 15, 1966. At left is Dr. Kenneth N. Beers, M.D., Flight Medicine Branch, Center Medical Office. NASA/UPI | License Photo
NASA astronauts Neil Armstrong (on left), and David Scott (on right), use a full-scale model of a Gemini spacecraft during water egress training in the Gulf of Mexico on January 15, 1966. Three Manned Spacecraft Center swimmers assist in the training exercise. NASA/UPI | License Photo
NASA astronaut David Scott hold onto the maneuvering unit while suspended in a weightless state during extravehicular activity (EVA) training in a C-135 Air Force plane on February 3, 1966. NASA/UPI | License Photo
NASA astronaut David Scott practicing for his Gemini 8 extravehicular activity (EVA) on the air bearing floor in Building 4 of the Manned Spacecraft Center (MSC) in Houston, Texas, on February 1, 1966. He is wearing the Hand-Held Maneuvering Unit, which he will use during the EVA. NASA/UPI | License Photo
NASA astronaut Neil Armstrong undergoes weight and balance tests in the Pyrotechnic Installation Building, at Kennedy Space Center, Fla., on February 18, 1966. NASA/UPI | License Photo
NASA astronaut David R. Scott, prime crew pilot on Gemini 8, undergoes water egress training in a special tank in Building 260A at the Manned Spacecraft Center (MSC), in Houston, Texas, on January 5, 1966. An MSC swimmer assists in the training exercise. A full-scale model of a Gemini spacecraft floats in the water beside Scott. NASA/UPI | License Photo
Gemini 8 prime and backup crews during a February 26, 1966, press conference. Left to right are astronauts David Scott, prime crew pilot; Neil Armstrong, prime crew command pilot; Pete Conrad, backup crew command pilot; and Richard Gordon Jr., backup crew pilot. NASA/UPI | License Photo
The Gemini 8 prime crew, along with several fellow astronauts, have a hearty breakfast of steak and eggs on March 16, 1966, the morning of the Gemini 8 launch. Seated clockwise around the table, starting at lower right, are Deke Slayton, Manned Spaceflight Center (MSC) Assistant Director for Flight Crew Operations; astronaut Neil Armstrong, Gemini 8 command pilot; scientist-astronaut Curt Michel; astronaut Walter Cunningham; astronaut Alan Shepard (face obscured), Chief, MSC Astronaut Office; astronaut David Scott, Gemini 8 pilot; and astronaut Roger Chaffee. NASA/UPI | License Photo
NASA astronaut Neil Armstrong, command pilot of the Gemini 8 spaceflight, sits in the Launch Complex 16 trailer during suiting up operations for the Gemini 8 mission on March 16, 1966. Suit technician Jim Garrepy assists. NASA/UPI | License Photo
NASA astronauts David Scott (left) and Neil Armstrong, both in full spacesuits, in white room entering the Gemini 8 spacecraft during countdown simulation on March 11, 1966. NASA/UPI | License Photo
NASA astronauts Neil Armstrong (foreground), command pilot, and David Scott, pilot, walk up the ramp at Launch Complex 19 during the Gemini 8 prelaunch countdown on March 16, 1966. NASA/UPI | License Photo
NASA astronauts Neil Armstrong (left) and David Scott (right), inserted into the Gemini 8 spacecraft prior to liftoff on March 16, 1966. NASA/UPI | License Photo
Close-up view of NASA astronaut David Scott, pilot of the Gemini 8 spaceflight, making final adjustments and checks in the spacecraft during the prelaunch countdown on March 16, 1966. In the background almost out of view is astronaut Neil Armstrong, command pilot. NASA/UPI | License Photo
An Agena Target Docking Vehicle atop an Atlas rocket lifts off from Launch Complex 14 at Kennedy Space Center at 10 a.m., on March 16, 1966, just prior to the Gemini 8 liftoff at nearby Launch Complex 19. The Agena served as a rendezvous and docking vehicle for the Gemini 8 spacecraft. NASA/UPI | License Photo
Gemini-Titan 8 (GT-8) spacecraft, carrying NASA astronauts Neil Armstrong, command pilot, and David Scott, pilot, successfully launches from Kennedy Space Center (KSC) at 11:41 a.m. (EST), on March 16, 1966. Gemini 8 successfully rendezvoused and docked with the Agena Docking Target Vehicle during their spaceflight. NASA/UPI | License Photo
View inside Mission Control, radio callsign Houston, at the Manned Space Center (Johnson Space Center) in Houston, Texas, during NASA's Gemini 8 mission on March 16, 1966. Crewmen for the Gemini 8 mission were astronauts Neil Armstrong, command pilot, and David Scott, pilot. NASA/UPI | License Photo
Astronaut Jim Lovell (foreground), serving as Houston CAPCOM (Capsule Communicator), watches the launch of Gemini 8 at Johnson Space Center in Houston, Texas, on March 16, 1966. NASA/UPI | License Photo
Closer view of the Agena Target Docking vehicle seen from the Gemini 8 spacecraft during rendezvous in space on March 16-17, 1966. Crewmen for the Gemini 8 mission were astronauts Neil Armstrong, command pilot, and David Scott, pilot. NASA/UPI | License Photo
Closer view of the Agena Target Docking vehicle seen from the Gemini 8 spacecraft during docking maneuvers in space on March 16-17, 1966. The Gemini adapter of the Agena is approximately two feet from the nose of the spacecraft (lower left). Crewmen for the Gemini 8 mission were astronauts Neil Armstrong, command pilot, and David Scott, pilot. NASA/UPI | License Photo
NASA astronauts Neil Armstrong (right) and David Scott (left) sit with their spacecraft hatches open while awaiting the arrival of the recovery ship, the USS Leonard F. Mason after the completion of their Gemini 8 mission on March 16, 1966. They are assisted by U.S. Air Force Pararescuemen. The overhead view shows the Gemini 8 spacecraft with the yellow flotation collar attached to stabilize the spacecraft in choppy seas. The green marker dye is highly visible from the air and is used as a locating aid. NASA/UPI | License Photo
The Gemini 8 spacecraft, with NASA astronauts Neil Armstrong and David Scott still strapped in, is hoisted aboard the USS Leonard F. Mason on March 17, 1966. NASA/UPI | License Photo
The Gemini 8 crew stands on the deck of the recovery vessel, the USS Leonard F. Mason, with three U.S. Air Force Pararescuemen, on March 17, 1966. From left to right (standing) are astronaut Neil Armstrong, command pilot; A2C Glenn Moore; astronaut David Scott, pilot; kneeling, left to right are A1C Eldridge Neal; and SSG Larry Huyett. NASA/UPI | License Photo
NASA astronauts Neil Armstrong (left), Gemini 8 command pilot, and David Scott (right), pilot, stand on the deck of the USS Leonard F. Mason upon its arrival at Naha, Okinawa, on March 17, 1966. NASA/UPI | License Photo
American armed services personnel at the Naha, Okinawa, military installation plan a welcome celebration for the Gemini 8 crew on March 17, 1966. NASA/UPI | License Photo
NASA astronauts Neil Armstrong (center), command pilot, and David Scott, pilot, arrive at Hickam Field, Hawaii on their way from Naha, Okinawa, to Cape Kennedy, Florida, on March 18, 1966, following their Gemini 8 mission. Astronaut Wally Schirra is at extreme left. NASA/UPI | License Photo
Official portrait of NASA astronauts David Scott and Neil Armstrong taken on November 4, 1964. Armstrong and Scott were the prime crew on Gemini 8. NASA/UPI | License Photo
NASA astronauts Neil Armstrong (left), command pilot, and David Scott, pilot, the Gemini 8 prime crew, during a photo session outside the Kennedy Space Center (KSC) Mission Control Center on March 11, 1966. They are standing in front of a radar dish. NASA/UPI | License Photo
Color design for the emblem of the Gemini 8 spaceflight. Roman numeral indicates the eighth flight in the Gemini series. Prime crewmen for the mission are astronauts Neil Armstrong, command pilot; and David Scott, pilot. NASA/UPI | License Photo