S61-02785 (5 May 1961) --- Astronaut Alan B. Shepard Jr. in his pressure suit is seated in a reclining chair while a technician checks communications equipment in his helmet. He is in the suiting trailer before the Mercury-Redstone 3 (MR-3) flight, the first American manned spaceflight. Photo credit: NASA or National Aeronautics and Space Administration

Alan Shepard and engineer looking at equipment, alone in Visual Docking Simulator, with engineers in Visual Docking Simulator.

Alan Shepard and engineer looking at equipment, alone in Visual Docking Simulator, with engineers in Visual Docking Simulator.

Cape Canaveral, Fla. – Laura Shepard Churchley, representing her late father Mercury 7 astronaut Alan Shepard, waves to spectators from a vintage Chevrolet Corvette during a commemorative parade in Cocoa Beach, Fla. A group of current and retired NASA astronauts gathered in Cocoa Beach to commemorate NASA’s 50 years of accomplishments and to honor astronaut Alan Shepard’s Mercury/Freedom 7 suborbital flight May 5, 1961.The event was marked by a parade, with the astronauts riding in a fleet of Chevrolet Corvettes that corresponded with the time period of their space missions. Members of the Cape Kennedy Corvette Club, a group established in 1967, escorted almost two dozen astronauts or their family representatives in club members' cars. The Corvette parade started at the glass bank building, at 9:34 a.m. EDT, the same time Shepard launched into space. Photo credit: NASA/Kim Shiflett

Astronaut Alan Shepard (right) was one of 14 astronauts, 8 NASA test pilots, and 2 McDonnell test pilots who took part in simulator studies. Shepard flew the simulator on November 14, 1963. A.W. Vogeley wrote: "Many of the astronauts have flown this simulator in support of the Gemini studies and they, without exception, appreciated the realism of the visual scene. The simulator has also been used in the development of pilot techniques to handle certain jet malfunctions in order that aborts could be avoided. In these situations large attitude changes are sometimes necessary and the false motion cues that were generated due to earth gravity were somewhat objectionable; however, the pilots were readily able to overlook these false motion cues in favor of the visual realism." Roy F. Brissenden noted that: "The basic Gemini control studies developed the necessary techniques and demonstrated the ability of human pilots to perform final space docking with the specified Gemini-Agena systems using only visual references. ... Results... showed that trained astronauts can effect the docking with direct acceleration control and even with jet malfunctions as long as good visual conditions exist.... Probably more important than data results was the early confidence that the astronauts themselves gained in their ability to perform the maneuver in the ultimate flight mission." Shepard commented: "I had the feeling tonight - a couple of times - that I was actually doing the space mission instead of the simulation. As I said before, I think it is a very good simulation." Shepard also commented on piloting techniques. Most astronauts arrived at this same preferred technique: Shepard: "I believe I have developed the preferred technique for these conditions and the technique appeared to me to be best was to come in slightly above the target so that I was able to use the longitudinal marks on the body of the target as a reference, particularly for a lateral translation and, of course, I used the foreshortening effect for a vertical translation, and this appeared to give me the best results. By that I mean the least number of control motions and the lowest fuel usage and the best end techniques, or the best end conditions, I should say." Engineer: "When you started to run you didn't start thrusting immediately I don't believe. It looked like you started working on your attitudes, then started closing in." Shepard: "That is correct. I did that because I felt that I wanted to get the X-axis translation in the most effective vector and for minimum fuel usage that wouldn't introduce any other lateral or vertical offsets that did not already exist." -- Published in Barton C. Hacker and James M. Grimwood, On the Shoulders of Titans: A History of Project Gemini, NASA SP-4203; A.W. Vogeley, "Discussion of Existing and Planned Simulators For Space Research," Paper presented at the Conference on the Role of Simulation in Space Technology, August 17-21, 1964; Roy F. Brissenden, "Initial Operations with Langley's Rendezvous Docking Facility," Langley Working Paper, LWP-21, 1964.

Astronaut Alan Shepard (right) was one of 14 astronauts, 8 NASA test pilots, and 2 McDonnell test pilots who took part in simulator studies. Shepard flew the simulator on November 14, 1963. A.W. Vogeley wrote: "Many of the astronauts have flown this simulator in support of the Gemini studies and they, without exception, appreciated the realism of the visual scene. The simulator has also been used in the development of pilot techniques to handle certain jet malfunctions in order that aborts could be avoided. In these situations large attitude changes are sometimes necessary and the false motion cues that were generated due to earth gravity were somewhat objectionable; however, the pilots were readily able to overlook these false motion cues in favor of the visual realism." Roy F. Brissenden noted that: "The basic Gemini control studies developed the necessary techniques and demonstrated the ability of human pilots to perform final space docking with the specified Gemini-Agena systems using only visual references. ... Results... showed that trained astronauts can effect the docking with direct acceleration control and even with jet malfunctions as long as good visual conditions exist.... Probably more important than data results was the early confidence that the astronauts themselves gained in their ability to perform the maneuver in the ultimate flight mission." Shepard commented: "I had the feeling tonight - a couple of times - that I was actually doing the space mission instead of the simulation. As I said before, I think it is a very good simulation." Shepard also commented on piloting techniques. Most astronauts arrived at this same preferred technique: Shepard: "I believe I have developed the preferred technique for these conditions and the technique appeared to me to be best was to come in slightly above the target so that I was able to use the longitudinal marks on the body of the target as a reference, particularly for a lateral translation and, of course, I used the foreshortening effect for a vertical translation, and this appeared to give me the best results. By that I mean the least number of control motions and the lowest fuel usage and the best end techniques, or the best end conditions, I should say." Engineer: "When you started to run you didn't start thrusting immediately I don't believe. It looked like you started working on your attitudes, then started closing in." Shepard: "That is correct. I did that because I felt that I wanted to get the X-axis translation in the most effective vector and for minimum fuel usage that wouldn't introduce any other lateral or vertical offsets that did not already exist." -- Published in Barton C. Hacker and James M. Grimwood, On the Shoulders of Titans: A History of Project Gemini, NASA SP-4203; A.W. Vogeley, "Discussion of Existing and Planned Simulators For Space Research," Paper presented at the Conference on the Role of Simulation in Space Technology, August 17-21, 1964; Roy F. Brissenden, "Initial Operations with Langley's Rendezvous Docking Facility," Langley Working Paper, LWP-21, 1964.

Astronaut Alan Shepard underwent a physical examination prior to the first marned suborbital flight. Freedom 7 carrying Astronaut Alan Shepard, boosted by the Mercury-Redstone launch vehicle, lifted off on May 5, 1961. Astronaut Shepard became the first American in space.

S71-17356 (January 1971) --- This is a family portrait of astronaut Alan B. Shepard Jr. and his family. Shepard is the commander of the Apollo 14 lunar landing mission. The family includes Mrs. Shepard, the former Louise Brewer; Laura Shepard Snyder (seated on Shepard's left), born on July 2, 1947; Julie Shepard (right foreground), born on March 16, 1951; and Alice Shepard (left foreground), a niece of Mrs. Shepard.

S61-03850 (1 Oct. 1961) --- Astronaut Alan B. Shepard Jr. (right) receives a plaque and award from members of the British Rocket Society. Photo credit: NASA or National Aeronautics and Space Administration

Astronaut Alan B. Shepard, Jr. during suiting for the first manned suborbital flight, MR-3 mission. The Freedom 7 spacecraft, carrying the first American, Astronaut Shepard and boosted by the Mercury-Redstone launch vehicle, lifted off on May 5, 1961.

Astronaut Alan Shepard fitted with space suit prior to the first marned suborbital flight. Freedom 7, carrying Astronaut Alan Shepard, boosted by the Mercury-Redstone launch vehicle, lifted off on May 5, 1961. Astronaut Shepard became the first American in space.

S71-52263 (1971) --- Astronaut Alan B. Shepard Jr.

Cape Canaveral, Fla. -- A lineup of vintage and new Chevrolet Corvettes are parked after a commemorative parade in Cocoa Beach, Florida. A group of current and retired NASA astronauts gathered in Cocoa Beach to commemorate NASA’s 50 years of accomplishments and to honor astronaut Alan Shepard’s Mercury/Freedom 7 suborbital flight May 5, 1961.The event was marked by a parade, with the astronauts riding in a fleet of Chevrolet Corvettes that corresponded with the time period of their space missions. Members of the Cape Kennedy Corvette Club, a group established in 1967, escorted almost two dozen astronauts or their family representatives in club members' cars. The Corvette parade started at the glass bank building, at 9:34 a.m. EDT, the same time Shepard launched into space. Photo credit: NASA/Kim Shiflett

Cape Canaveral, Fla. -- Retired Mercury 7 astronaut Scott Carpenter gives a thumbs-up to spectators from a Chevrolet Corvette after a commemorative parade in Cocoa Beach, Florida. A group of current and retired NASA astronauts gathered in Cocoa Beach to commemorate NASA’s 50 years of accomplishments and to honor astronaut Alan Shepard’s Mercury/Freedom 7 suborbital flight May 5, 1961.The event was marked by a parade, with the astronauts riding in a fleet of Chevrolet Corvettes that corresponded with the time period of their space missions. Members of the Cape Kennedy Corvette Club, a group established in 1967, escorted almost two dozen astronauts or their family representatives in club members' cars. The Corvette parade started at the glass bank building, at 9:34 a.m. EDT, the same time Shepard launched into space. Photo credit: NASA/Kim Shiflett

Cape Canaveral, Fla. -- Retired space shuttle astronaut Sam Durrance greets spectators from a Chevrolet Corvette during a commemorative parade in Cocoa Beach, Fla. A group of current and retired NASA astronauts gathered in Cocoa Beach to commemorate NASA’s 50 years of accomplishments and to honor astronaut Alan Shepard’s Mercury/Freedom 7 suborbital flight May 5, 1961.The event was marked by a parade, with the astronauts riding in a fleet of Chevrolet Corvettes that corresponded with the time period of their space missions. Members of the Cape Kennedy Corvette Club, a group established in 1967, escorted almost two dozen astronauts or their family representatives in club members' cars. The Corvette parade started at the glass bank building, at 9:34 a.m. EDT, the same time Shepard launched into space. Photo credit: NASA/Kim Shiflett

Cape Canaveral, Fla. -- Retired space shuttle astronaut Loren Shriver Hauck greets spectators from a Chevrolet Corvette during a commemorative parade in Cocoa Beach, Fla. A group of current and retired NASA astronauts gathered in Cocoa Beach to commemorate NASA’s 50 years of accomplishments and to honor astronaut Alan Shepard’s Mercury/Freedom 7 suborbital flight May 5, 1961.The event was marked by a parade, with the astronauts riding in a fleet of Chevrolet Corvettes that corresponded with the time period of their space missions. Members of the Cape Kennedy Corvette Club, a group established in 1967, escorted almost two dozen astronauts or their family representatives in club members' cars. The Corvette parade started at the glass bank building, at 9:34 a.m. EDT, the same time Shepard launched into space. Photo credit: NASA/Kim Shiflett

Cape Canaveral, Fla. -- Retired Apollo astronaut Edgar (Ed) Mitchell waves to spectators from a vintage Chevrolet Corvette during a commemorative parade in Cocoa Beach, Fla. A group of current and retired NASA astronauts gathered in Cocoa Beach to commemorate NASA’s 50 years of accomplishments and to honor astronaut Alan Shepard’s Mercury/Freedom 7 suborbital flight May 5, 1961.The event was marked by a parade, with the astronauts riding in a fleet of Chevrolet Corvettes that corresponded with the time period of their space missions. Members of the Cape Kennedy Corvette Club, a group established in 1967, escorted almost two dozen astronauts or their family representatives in club members' cars. The Corvette parade started at the glass bank building, at 9:34 a.m. EDT, the same time Shepard launched into space. Photo credit: NASA/Kim Shiflett

Cape Canaveral, Fla. – Suzan Cooper, representing her late husband Mercury 7 astronaut Gordon Cooper, waves to spectators from a vintage Chevrolet Corvette during a commemorative parade in Cocoa Beach, Fla. A group of current and retired NASA astronauts gathered in Cocoa Beach to commemorate NASA’s 50 years of accomplishments and to honor astronaut Alan Shepard’s Mercury/Freedom 7 suborbital flight May 5, 1961.The event was marked by a parade, with the astronauts riding in a fleet of Chevrolet Corvettes that corresponded with the time period of their space missions. Members of the Cape Kennedy Corvette Club, a group established in 1967, escorted almost two dozen astronauts or their family representatives in club members' cars. The Corvette parade started at the glass bank building, at 9:34 a.m. EDT, the same time Shepard launched into space. Photo credit: NASA/Kim Shiflett

Cape Canaveral, Fla. -- Kennedy Space Center Director and former space shuttle astronaut Bob Cabana waves to spectators from a Chevrolet Corvette during a commemorative parade in Cocoa Beach, Fla. A group of current and retired NASA astronauts gathered in Cocoa Beach to commemorate NASA’s 50 years of accomplishments and to honor astronaut Alan Shepard’s Mercury/Freedom 7 suborbital flight May 5, 1961.The event was marked by a parade, with the astronauts riding in a fleet of Chevrolet Corvettes that corresponded with the time period of their space missions. Members of the Cape Kennedy Corvette Club, a group established in 1967, escorted almost two dozen astronauts or their family representatives in club members' cars. The Corvette parade started at the glass bank building, at 9:34 a.m. EDT, the same time Shepard launched into space. Photo credit: NASA/Kim Shiflett

Cape Canaveral, Fla. -- Retired shuttle and Skylab astronaut Dick Lousma greets spectators from a Chevrolet Corvette during a commemorative parade in Cocoa Beach, Fla. A group of current and retired NASA astronauts gathered in Cocoa Beach to commemorate NASA’s 50 years of accomplishments and to honor astronaut Alan Shepard’s Mercury/Freedom 7 suborbital flight May 5, 1961.The event was marked by a parade, with the astronauts riding in a fleet of Chevrolet Corvettes that corresponded with the time period of their space missions. Members of the Cape Kennedy Corvette Club, a group established in 1967, escorted almost two dozen astronauts or their family representatives in club members' cars. The Corvette parade started at the glass bank building, at 9:34 a.m. EDT, the same time Shepard launched into space. Photo credit: NASA/Kim Shiflett

Cape Canaveral, Fla. -- Retired space shuttle astronaut Don McMonagle waves to spectators from a vintage Chevrolet Corvette during a commemorative parade in Cocoa Beach, Fla. A group of current and retired NASA astronauts gathered in Cocoa Beach to commemorate NASA’s 50 years of accomplishments and to honor astronaut Alan Shepard’s Mercury/Freedom 7 suborbital flight May 5, 1961.The event was marked by a parade, with the astronauts riding in a fleet of Chevrolet Corvettes that corresponded with the time period of their space missions. Members of the Cape Kennedy Corvette Club, a group established in 1967, escorted almost two dozen astronauts or their family representatives in club members' cars. The Corvette parade started at the glass bank building, at 9:34 a.m. EDT, the same time Shepard launched into space. Photo credit: NASA/Kim Shiflett

Cape Canaveral, Fla. -- Retired Gemini and Apollo astronaut Dick Gordon waves to spectators from a vintage Chevrolet Corvette during a commemorative parade in Cocoa Beach, Fla. A group of current and retired NASA astronauts gathered in Cocoa Beach to commemorate NASA’s 50 years of accomplishments and to honor astronaut Alan Shepard’s Mercury/Freedom 7 suborbital flight May 5, 1961.The event was marked by a parade, with the astronauts riding in a fleet of Chevrolet Corvettes that corresponded with the time period of their space missions. Members of the Cape Kennedy Corvette Club, a group established in 1967, escorted almost two dozen astronauts or their family representatives in club members' cars. The Corvette parade started at the glass bank building, at 9:34 a.m. EDT, the same time Shepard launched into space. Photo credit: NASA/Kim Shiflett

Cape Canaveral, Fla. -- Kennedy Space Center Director and former space shuttle astronaut Bob Cabana gives a thumbs-up to spectators from a Chevrolet Corvette during a commemorative parade in Cocoa Beach, Fla. A group of current and retired NASA astronauts gathered in Cocoa Beach to commemorate NASA’s 50 years of accomplishments and to honor astronaut Alan Shepard’s Mercury/Freedom 7 suborbital flight May 5, 1961.The event was marked by a parade, with the astronauts riding in a fleet of Chevrolet Corvettes that corresponded with the time period of their space missions. Members of the Cape Kennedy Corvette Club, a group established in 1967, escorted almost two dozen astronauts or their family representatives in club members' cars. The Corvette parade started at the glass bank building, at 9:34 a.m. EDT, the same time Shepard launched into space. Photo credit: NASA/Kim Shiflett

Cape Canaveral, Fla. – Retired Mercury 7 astronaut Scott Carpenter waves to spectators from a vintage Chevrolet Corvette during a commemorative parade in Cocoa Beach, Fla. A group of current and retired NASA astronauts gathered in Cocoa Beach to commemorate NASA’s 50 years of accomplishments and to honor astronaut Alan Shepard’s Mercury/Freedom 7 suborbital flight May 5, 1961.The event was marked by a parade, with the astronauts riding in a fleet of Chevrolet Corvettes that corresponded with the time period of their space missions. Members of the Cape Kennedy Corvette Club, a group established in 1967, escorted almost two dozen astronauts or their family representatives in club members' cars. The Corvette parade started at the glass bank building, at 9:34 a.m. EDT, the same time Shepard launched into space. Photo credit: NASA/Kim Shiflett

Cape Canaveral, Fla. -- Kennedy Space Center Director and former space shuttle astronaut Bob Cabana waves to spectators from a Chevrolet Corvette after a commemorative parade in Cocoa Beach, Florida. A group of current and retired NASA astronauts gathered in Cocoa Beach to commemorate NASA’s 50 years of accomplishments and to honor astronaut Alan Shepard’s Mercury/Freedom 7 suborbital flight May 5, 1961.The event was marked by a parade, with the astronauts riding in a fleet of Chevrolet Corvettes that corresponded with the time period of their space missions. Members of the Cape Kennedy Corvette Club, a group established in 1967, escorted almost two dozen astronauts or their family representatives in club members' cars. The Corvette parade started at the glass bank building, at 9:34 a.m. EDT, the same time Shepard launched into space. Photo credit: NASA/Kim Shiflett

Cape Canaveral, Fla. -- Guests and retired astronauts walk away from the Chevrolet Corvettes they rode in during a commemorative parade in Cocoa Beach, Florida. A group of current and retired NASA astronauts gathered in Cocoa Beach to commemorate NASA’s 50 years of accomplishments and to honor astronaut Alan Shepard’s Mercury/Freedom 7 suborbital flight May 5, 1961.The event was marked by a parade, with the astronauts riding in a fleet of Chevrolet Corvettes that corresponded with the time period of their space missions. Members of the Cape Kennedy Corvette Club, a group established in 1967, escorted almost two dozen astronauts or their family representatives in club members' cars. The Corvette parade started at the glass bank building, at 9:34 a.m. EDT, the same time Shepard launched into space. Photo credit: NASA/Kim Shiflett

Cape Canaveral, Fla. -- Retired space shuttle astronaut Susan Kilrain waves to spectators from a Chevrolet Corvette during a commemorative parade in Cocoa Beach, Fla. A group of current and retired NASA astronauts gathered in Cocoa Beach to commemorate NASA’s 50 years of accomplishments and to honor astronaut Alan Shepard’s Mercury/Freedom 7 suborbital flight May 5, 1961.The event was marked by a parade, with the astronauts riding in a fleet of Chevrolet Corvettes that corresponded with the time period of their space missions. Members of the Cape Kennedy Corvette Club, a group established in 1967, escorted almost two dozen astronauts or their family representatives in club members' cars. The Corvette parade started at the glass bank building, at 9:34 a.m. EDT, the same time Shepard launched into space. Photo credit: NASA/Kim Shiflett

Cape Canaveral, Fla. -- Retired space shuttle astronaut James Reilly waves to spectators from a vintage Chevrolet Corvette during a commemorative parade in Cocoa Beach, Fla. A group of current and retired NASA astronauts gathered in Cocoa Beach to commemorate NASA’s 50 years of accomplishments and to honor astronaut Alan Shepard’s Mercury/Freedom 7 suborbital flight May 5, 1961.The event was marked by a parade, with the astronauts riding in a fleet of Chevrolet Corvettes that corresponded with the time period of their space missions. Members of the Cape Kennedy Corvette Club, a group established in 1967, escorted almost two dozen astronauts or their family representatives in club members' cars. The Corvette parade started at the glass bank building, at 9:34 a.m. EDT, the same time Shepard launched into space. Photo credit: NASA/Kim Shiflett

Cape Canaveral, Fla. -- Retired Apollo astronaut Walt Cunningham greets spectators from a vintage Chevrolet Corvette during a commemorative parade in Cocoa Beach, Fla. A group of current and retired NASA astronauts gathered in Cocoa Beach to commemorate NASA’s 50 years of accomplishments and to honor astronaut Alan Shepard’s Mercury/Freedom 7 suborbital flight May 5, 1961.The event was marked by a parade, with the astronauts riding in a fleet of Chevrolet Corvettes that corresponded with the time period of their space missions. Members of the Cape Kennedy Corvette Club, a group established in 1967, escorted almost two dozen astronauts or their family representatives in club members' cars. The Corvette parade started at the glass bank building, at 9:34 a.m. EDT, the same time Shepard launched into space. Photo credit: NASA/Kim Shiflett

Cape Canaveral, Fla. -- Retired Mercury 7 astronaut Scott Carpenter is warmly greeted by spectators while sitting in a vintage Chevrolet Corvette after a commemorative parade in Cocoa Beach, Florida. A group of current and retired NASA astronauts gathered in Cocoa Beach to commemorate NASA’s 50 years of accomplishments and to honor astronaut Alan Shepard’s Mercury/Freedom 7 suborbital flight May 5, 1961.The event was marked by a parade, with the astronauts riding in a fleet of Chevrolet Corvettes that corresponded with the time period of their space missions. Members of the Cape Kennedy Corvette Club, a group established in 1967, escorted almost two dozen astronauts or their family representatives in club members' cars. The Corvette parade started at the glass bank building, at 9:34 a.m. EDT, the same time Shepard launched into space. Photo credit: NASA/Kim Shiflett

Cape Canaveral, Fla. -- Retired payload specialist John-David Bartoe greets spectators during a commemorative parade in Cocoa Beach, Fla. A group of current and retired NASA astronauts gathered in Cocoa Beach to commemorate NASA’s 50 years of accomplishments and to honor astronaut Alan Shepard’s Mercury/Freedom 7 suborbital flight May 5, 1961.The event was marked by a parade, with the astronauts riding in a fleet of Chevrolet Corvettes that corresponded with the time period of their space missions. Members of the Cape Kennedy Corvette Club, a group established in 1967, escorted almost two dozen astronauts or their family representatives in club members' cars. The Corvette parade started at the glass bank building, at 9:34 a.m. EDT, the same time Shepard launched into space. Photo credit: NASA/Kim Shiflett

Cape Canaveral, Fla. -- Retired space shuttle astronaut Dick Gordon is warmly greeted by spectators while sitting in a vintage Chevrolet Corvette after a commemorative parade in Cocoa Beach, Florida. A group of current and retired NASA astronauts gathered in Cocoa Beach to commemorate NASA’s 50 years of accomplishments and to honor astronaut Alan Shepard’s Mercury/Freedom 7 suborbital flight May 5, 1961.The event was marked by a parade, with the astronauts riding in a fleet of Chevrolet Corvettes that corresponded with the time period of their space missions. Members of the Cape Kennedy Corvette Club, a group established in 1967, escorted almost two dozen astronauts or their family representatives in club members' cars. The Corvette parade started at the glass bank building, at 9:34 a.m. EDT, the same time Shepard launched into space. Photo credit: NASA/Kim Shiflett

The launch of the Mercury-Redstone (MR-3), Freedom 7. MR-3 placed the first American astronaut, Alan Shepard, in suborbit on May 5, 1961.

Astronaut Alan Shepard with Gilruth, and Astronauts Slayton, Cooper, Carpenter, Schirra, Grissom around the Manned Spacecraft Center (MSC) sign at the Farnsworth-Chambers Bldg. FARNSWORTH-CHAMBERS BLDG., HOUSTON, TX B&W

Alan B. Shepard, Jr., America's first astronaut, stands in front of the Freedom 7 spacecraft shortly after completion of the third flight of the Mercury-Redstone (MR-3) vehicle, May 5, 1961. During the 15-minute suborbital flight, the Freedom 7 Mercury spacecraft, launched atop a modified Redstone rocket developed by Dr. Wernher von Braun and the rocket team in Huntsville, Alabama, reached an altitude of 115 miles and traveled 302 miles downrange.

S61-00239 (1961) --- Mercury astronauts John H. Glenn Jr., Virgil I. Grissom and Alan B. Shepard Jr. standing by Redstone rocket in their spacesuits. Photo credit: NASA

G60-02665 (1960) --- Astronaut Alan B. Shepard Jr., Mercury-Redstone 3 (MR-3) pilot, wearing pressure suit with body parachute. Photo credit: NASA or National Aeronautics and Space Administration

Alan B. Shepard, Jr., Apollo 14 mission commander, watches a technician conduct space suit checks during a demonstration test prior to countdown. The Apollo 14, carrying a crew of three astronauts: Shepard; Command Module pilot Stuart A. Roosa, and Lunar Module pilot Edgar D. Mitchell, lifted off from launch complex 39A at KSC on January 31, 1971. It was the third manned lunar landing, the first manned landing in exploration of the lunar highlands, and it demonstrated pinpoint landing capability. The major goal of Apollo 14 was the scientific exploration of the Moon in the foothills of the rugged Fra Mauro region. The extravehicular activities (EVA) of astronauts Shepard and Mitchell included setting up an automated scientific laboratory called Apollo Lunar Scientific Experiments Package (ALSEP), and collecting a total of about 95 pounds (43 kilograms) of Moon rock and soil for a geological investigation back on the Earth. Apollo 14 safely returned to Earth on February 9, 1971.

Apollo 14 Mission Commander, Alan B. Shepard, Jr., waves to well-wishers as he and astronauts Stuart A. Roosa, Command Module pilot; and Edgar D. Mitchell, Lunar Module pilot, walk to the transfer van during the countdown demonstration test. The Apollo 14, carrying the crew of three lifted off from launch complex 39A at KSC on January 31, 1971. It was the third manned lunar landing, the first manned landing in exploration of the lunar highlands, and it demonstrated pinpoint landing capability. The major goal of Apollo 14 was the scientific exploration of the Moon in the foothills of the rugged Fra Mauro region. The lunar surface extravehicular activity (EVA) of astronauts Shepard and Mitchell included setting up an automated scientific laboratory called Apollo Lunar Scientific Experiments Package (ALSEP), and collecting a total of about 95 pounds (43 kilograms) of Moon rock and soil for a geological investigation back on the Earth. Apollo 14 safely returned to Earth on February 9, 1971.

S61-03651 (5 May 1961) --- Astronaut Alan B. Shepard Jr., in his pressure suit and helmet, is being inserted into the Freedom 7 capsule in preparation for the Mercury-Redstone 3 (MR-3) mission. Photo credit: NASA or National Aeronautics and Space Administration

This photo depicts the recovery operations of the MR-3 mission. Astronaut Alan Shepard was picked up by a U.S. Marine helicopter after the completion of the first marned suborbital flight by MR-3 (Mercury-Redstone) with the Freedom 7 capsule.

S61-01927 (5 May 1961) --- Mercury-Redstone 3 (MR-3), the United States' first manned spaceflight, is launched from Cape Canaveral on a suborbital mission. Astronaut Alan B. Shepard Jr. was the pilot of the Mercury spacecraft, designated "Freedom 7". The spacecraft attained a maximum speed of 5,180 miles per hour (mph), reached an altitude of 116 1/2 statute miles, and landed 302 statute miles downrange from Cape Canaveral, Florida. Photo credit: NASA or National Aeronautics and Space Administration

S61-02794 (5 May 1961) --- Astronaut Alan B. Shepard Jr., shakes hands with fellow astronaut Virgil I. Grissom (on left, back to camera), prior to ingressing the capsule for his Mercury-Redstone 3 (MR-3) spaceflight. Astronaut John H. Glenn Jr. (center background in white cap) looks on along with Gunter Wendt (to the left of Glenn) and two unidentified technicians. Photo credit: NASA or National Aeronautics and Space Administration

G60-02402 (1960) --- Astronaut Alan B. Shepard Jr. prepares for testing in a capsule of the U.S. Navy's centrifuge at Johnsville, Pennsylvania. Photo credit: NASA or National Aeronautics and Space Administration

S70-46191 (July 1970) --- Astronaut Alan B. Shepard Jr., commander of the Apollo 14 lunar landing mission, participates in lunar surface training at the Kennedy Space Center (KSC). Shepard is adjusting a camera mounted to the modular equipment transporter (MET). The MET, nicknamed the "Rickshaw", will serve as a portable work bench with a place for the Apollo lunar hand tools and their carrier, three cameras, two sample container bags, a special environment sample container, spare magazines, and a lunar surface Penetrometer. Shepard is wearing an Extravehicular Mobility Unit (EMU).

S70-56287 (14 Dec. 1970) --- Astronaut Alan B. Shepard Jr., commander of the Apollo 14 lunar landing mission, stands near a Lunar Landing Training Vehicle (LLTV) prior to a test flight at Ellington Air Force Base, Houston, on Dec. 14, 1970. Shepard will be at the controls of the Apollo 14 Lunar Module (LM) when it lands on the moon in the highlands near Fra Mauro. Astronaut Stuart A. Roosa, command module pilot, will remain with the Command and Service Modules (CSM) in lunar orbit while astronauts Shepard and Edgar D. Mitchell, lunar module pilot, descend in the LM to explore the moon.

Five of the seven original astronauts are seen with Dr. von Braun inspecting the Mercury-Redstone hardware in the Fabrication Laboratory of Army Ballistic Missile Agency (ABMA) in 1959. Left to right: Astronauts Walter Schirra, Alan Shepard, John Glenn, Scott Carpenter, Gordon Cooper, and Dr. von Braun.

S61-02735 (5 May 1961) --- Astronauts Alan Shepard and John Glenn at breakfast before Shepard's Mercury-Redstone 3 (MR-3) spaceflight. Photo credit: NASA or National Aeronautics and Space Administration

This is a view from sequential photographs of the Apollo 14 liftoff taken by a remote camera atop the 360-foot gantry level of Launch Complex 39A. The Apollo 14, carrying a crew of three astronauts: Mission commander Alan B. Shepard Jr., Command Module pilot Stuart A. Roosa, and Lunar Module pilot Edgar D. Mitchell, lifted off from launch complex 39A at the Kennedy Space Center on January 31, 1971. It was the third manned lunar landing, the first manned landing in exploration of the lunar highlands, and it demonstrated pinpoint landing capability. The major goal of Apollo 14 was the scientific exploration of the Moon in the foothills of the rugged Fra Mauro region. Activities of astronauts Shepard and Mitchell, during extravehicular activity (EVA) on the lunar surface, included setting up an automated scientific laboratory called Apollo Lunar Scientific Experiments Package (ALSEP), and collecting a total of about 95 pounds (43 kilograms) of Moon rock and soil for a geological investigation back on the Earth.

S70-45232 (14 July 1970) --- Astronaut Alan B. Shepard Jr., commander of the Apollo 14 lunar landing mission. Photo credit: NASA

S88-31387 (8 May 1961) --- President John F. Kennedy (left) congratulates NASA's Distinguished Service Medal Award recipient astronaut Alan B. Shepard Jr. in a Rose Garden ceremony on May 8, 1961, at the White House. Vice-President Lyndon B. Johnson, NASA Administrator James E. Webb and several NASA astronauts are in the background. Three days earlier, Shepard made history with a 15-minute suborbital space mission in the Freedom 7, Mercury-Redstone 3 spacecraft. Photo credit: NASA

S70-45555 (July 1970) --- A fish-eye lens view showing astronauts Alan B. Shepard Jr. (foreground) and Edgar D. Mitchell in the Apollo lunar module mission simulator at the Kennedy Space Center during preflight training for the Apollo 14 lunar landing mission. Shepard is the Apollo 14 commander; and Mitchell is the lunar module pilot.

S88-31383 (5 May 1961) --- Astronaut Alan B. Shepard Jr., Mercury-Redstone 3 (MR-3) pilot, jokes with doctors while in-flight between the U.S. Navy Carrier Champlain and the Grand Bahama Islands. Shepard is the first American in space with the successful completion of the 15-minute suborbital mission. Photo credit: NASA or National Aeronautics and Space Administration

S88-31388 (8 May 1961) --- Astronaut Alan B. Shepard Jr. (center), along with wife Louise, waves to a crowd outside the U.S. Capitol building. Shepard, Mercury-Redstone 3 astronaut, had earlier briefed Congress on the first U.S. manned spaceflight -- a 15-minute suborbital mission on May 5, 1961, aboard the Freedom 7 capsule. (NASA Hq. Photo No., MR3-49) Photo credit: NASA or National Aeronautics and Space Administration

S88-31380 (5 May 1961) --- Astronaut Alan B. Shepard Jr., strides across the deck of the U.S. Navy Carrier Champlain following an inspection of his Freedom 7 capsule. Shepard had just completed the first manned U.S. space mission, a 15-minute suborbital flight. (NASA Hq. Photo No., MR3-40) Photo credit: NASA or National Aeronautics and Space Administration

S67-19572 (8 May 1961) --- Astronaut Alan B. Shepard Jr. receives the NASA Distinguished Service Award from United States President John F. Kennedy May 8, 1961, days after his history making MR-3 flight. Shepard's wife and mother on left and the other six Mercury astronauts are in background. Photo credit: NASA or National Aeronautics and Space Administration

S71-16638 (31 Jan. 1971) --- Astronaut Alan B. Shepard Jr., commander, undergoes suiting up operations at the Kennedy Space Center (KSC) during the Apollo 14 prelaunch countdown. Apollo 14, with astronauts Shepard; Edgar D. Mitchell, lunar module pilot; and Stuart A. Roosa, command module pilot; aboard was launched from Pad A, Launch Complex 39 at 4:03:02 p.m. (EST), Jan. 31, 1971.

S61-02455 (19 June 1961) --- Astronaut Alan B. Shepard Jr. met and talked with Boy Scouts from Franklin, Virginia on June 19, 1961. They are photographed in front of the NASA Space Task Group building at Langley Space Flight Center. Photo credit: NASA or National Aeronautics and Space Administration

S63-06268 (8 May 1963) --- Astronaut Alan B. Shepard, Jr., receives his NASA's Distinguished Service Medal from President John F. Kennedy, after his Mercury-Redstone 3 (MR-3) flight, in a Rose Garden ceremony on May 8, 1961 at the White House.

S61-02409 (5 May 1961) --- Launching of the Mercury-Redstone 3 (MR-3) rocket from Cape Canaveral on astronaut Alan B. Shepard?s suborbital mission. Photo credit: NASA or National Aeronautics and Space Administration

S61-02792 (5 May 1961) --- Astronaut Alan B. Shepard Jr., in his pressure suit and helmet, approaches the Freedom 7 capsule in preparation for insertion before the Mercury-Redstone 3 (MR-3) mission. Photo credit: NASA or National Aeronautics and Space Administration

S61-02767 (5 May 1961) --- Astronaut Alan B. Shepard Jr. in flight couch for final check before insertion into capsule for his Mercury-Redstone 3 (MR-3) flight. Photo credit: NASA or National Aeronautics and Space Administration

AS14-68-9414 (6 Feb. 1971) --- Astronaut Alan B. Shepard Jr., Apollo 14 commander, stands beside a large boulder on the lunar surface during the mission's second extravehicular activity (EVA), on Feb. 6, 1971. Note the lunar dust clinging to Shepard's space suit. Astronauts Shepard and Edgar D. Mitchell, lunar module pilot, explored the lunar surface while astronaut Stuart A. Roosa, command module pilot, orbited the moon in the Command and Service Modules (CSM).

Patty Carpenter, wife of NASA Mercury Astronaut Scott Carpenter, left, Daughters of NASA astronaut Alan Shepard, Laura Shepard Churchley, and, Alice Wackermann, right, sing the National Anthem during an unveiling ceremony of two USPS stamps that commemorate and celebrate 50 years of US Spaceflight and the MESSENGER program during an event, Wednesday, May 4, 2011 at the NASA Kennedy Space Center in Cape Canaveral, Fla. One stamp commemorates NASA’s Project Mercury, America’s first manned spaceflight program, and NASA astronaut Alan Shepard’s historic flight on May 5, 1961, aboard spacecraft Freedom 7. The other stamp draws attention to NASA’s unmanned MESSENGER mission, a scientific investigation of the planet Mercury. On March 17, 2011, MESSENGER became the first spacecraft to enter into orbit around Mercury. Photo Credit: (NASA/Bill Ingalls)

S70-19764 (18 Sept. 1970) --- Astronauts Alan B. Shepard Jr. (right), commander, and Edgar D. Mitchell, lunar module pilot, are suited up for a manned altitude run in the Apollo 14 Lunar Module. The manned run in a vacuum chamber of the Manned Spacecraft Operations Building was conducted to validate the LM's communications and guidance and navigation systems. Apollo 14 is scheduled for launch from Cape Kennedy on Jan. 31, 1971, on a lunar exploration mission which is to carry Shepard and Mitchell down to the moon's rugged Fra Maura highlands region. Astronaut Stuart A. Roosa, command module pilot, will remain with the Apollo 14 Command and Service Modules in lunar orbit while the other two astronauts explore the moon.

S71-19509 (5 Feb. 1971) --- Astronaut Edgar D. Mitchell, lunar module pilot, operates the Active Seismic Experiment's (ASE) thumper during the first Apollo 14 extravehicular activity (EVA) on the moon. Astronaut Alan B. Shepard Jr., commander, walks near deployed components of the Apollo Lunar Surface Experiments Package (ALSEP) in the background. This photograph was taken by an automatic 16mm camera mounted on the Apollo lunar hand tool carrier aboard the Modularized Equipment Transporter (MET). While astronauts Shepard and Mitchell descended in the LM to explore the moon, astronaut Stuart A. Roosa, command module pilot, remained with the Command and Service Modules (CSM) in lunar orbit.

S61-02727 (5 May 1961) --- Astronaut Alan B. Shepard is seen on the deck of the USS Lake Champlain after the recovery of his Mercury capsule in the western Atlantic Ocean. Shepard and the Mercury spacecraft designated the ?Freedom 7? were flown to the deck of the recovery ship within 11 minutes of splashdown. MR-3 was the United States? first manned space mission. The spacecraft attained a maximum speed of 5,180 miles per hour, reached an altitude of 116 1/2 statute miles, and landed 302 statute miles downrange from Cape Canaveral, Florida. The suborbital mission lasted 15 minutes and 22 seconds. Photo credit: NASA or National Aeronautics and Space Administration

AS14-66-9232 (5 Feb. 1971) --- Astronaut Alan B. Shepard Jr., commander of the Apollo 14 lunar landing mission, stands by the deployed United States flag on the lunar surface during the early moments of the first extravehicular activity (EVA) of the mission. Shadows of the Lunar Module (LM), astronaut Edgar D. Mitchell, lunar module pilot, and the erectable S-Band Antenna surround the scene of the third flag implanting to be performed on the lunar surface. While astronauts Shepard and Mitchell descended in the LM ?Antares? to explore the Fra Mauro region of the moon, astronaut Stuart A. Roosa, command module pilot, remained with the Command and Service Modules (CSM) ?Kitty Hawk? in lunar orbit.

S70-46157 (July 1970) --- Astronaut Alan B. Shepard Jr., commander of the Apollo 14 lunar landing mission, participates in lunar surface simulation training at the Kennedy Space Center (KSC). The modular equipment transporter (MET) is in the left background, in the center foreground is a gnomon. The MET, nicknamed the "Rickshaw", will serve as a portable work bench with a place for the Apollo lunar hand tools and their carrier, three cameras, two sample container bags, a special environment sample container, spare magazines, and a lunar surface Penetrometer. Shepard is wearing an Extravehicular Mobility Unit (EMU).

S88-31384 (5 May 1961) --- Astronaut Alan B. Shepard Jr., Mercury-Redstone 3 (MR-3) pilot, is pictured near his Freedom 7 capsule during a postflight inspection aboard the U.S. Navy Carrier Champlain after the recovery of his Mercury vehicle. Earlier Shepard had completed the historical 15-minute suborbital Mercury-Redstone 3 mission, marking the U.S. inaugural manned space mission. (NASA Hq. No. 61-MR3-107 or MR3-44) Photo credit: NASA or National Aeronautics and Space Administration

S61-02796 (5 May 1961) --- Rear view of astronaut Alan B. Shepard Jr., in his pressure suit and helmet, as he approaches the Freedom 7 capsule in preparation for ingress before the Mercury-Redstone 3 mission. All that can be seen of the astronaut is his legs. Photo credit: NASA or National Aeronautics and Space Administration

Daughters of NASA astronaut Alan Shepard, Laura Shepard Churchley, standing left, Alice Wackermann and Julie Jenkins, standing right, speak during an unveiling ceremony of two USPS stamps that commemorate and celebrate 50 years of US Spaceflight and the MESSENGER program during an event, Wednesday, May 4, 2011 at the NASA Kennedy Space Center in Cape Canaveral, Fla. One stamp commemorates NASA’s Project Mercury, America’s first manned spaceflight program, and NASA astronaut Alan Shepard’s historic flight on May 5, 1961, aboard spacecraft Freedom 7. The other stamp draws attention to NASA’s unmanned MESSENGER mission, a scientific investigation of the planet Mercury. On March 17, 2011, MESSENGER became the first spacecraft to enter into orbit around Mercury. Photo Credit: (NASA/Bill Ingalls)

S61-03645 (5 May 1961) --- Close-up of astronaut Alan B. Shepard Jr., in his pressure suit and helmet, ingressing into the Freedom 7 capsule in preparation for the Mercury-Redstone 3 (MR-3) mission. Photo credit: NASA or National Aeronautics and Space Administration

S61-02757 (5 May 1961) --- Astronaut Alan B. Shepard Jr. is being helped into his pressure suit for the Mercury-Redstone 3 (MR-3) flight, the first American manned spaceflight. Photo credit: NASA or National Aeronautics and Space Administration

S61-02766 (5 May 1961) --- Side view of astronaut Alan B. Shepard Jr. in his pressure suit, with helmet closed, for the Mercury-Redstone 3 (MR-3) flight, the first American manned spaceflight. Photo credit: NASA or National Aeronautics and Space Administration

S88-31377 (5 May 1961) --- Astronaut Alan B. Shepard Jr. is rescued by a U. S. Marine helicopter at the termination of his sub-orbital flight May 5, 196l, down range from the Florida eastern coast.

S61-02547 (5 May 1961) --- Astronaut Alan B. Shepard Jr., in his pressure suit and helmet, looks into the Freedom 7 capsule in preparation for ingress before the Mercury-Redstone 3 (MR-3) mission. Photo credit: NASA or National Aeronautics and Space Administration

S88-31382 (5 May 1961) --- Astronaut Alan B. Shepard receives assistance in removing his spacesuit while on the U.S. Champlain after the recovery of his Mercury capsule. Photo credit: NASA or National Aeronautics and Space Administration

S61-02755 (5 May 1961) --- Astronaut Alan B. Shepard Jr. is being helped into the lower half of his pressure suit for the Mercury-Redstone 3 (MR-3) flight, the first American manned spaceflight. Photo credit: NASA or National Aeronautics and Space Administration

The original seven astronauts for the Mercury Project pose in front of an Air Force Jet. From left to right: Scott Carpenter, L. Gordon Cooper, John H. Glenn, Virgil I. Gus Grissom, Walter M. Wally Schirra, Alan B. Shepard, and Donald K. Deke Slayton.

S88-31376 (5 May 1961) --- Astronaut Alan B. Shepard Jr., pilot of the Mercury-Redstone 3 (MR-3) suborbital spaceflight, is retrieved by a helicopter from the USS Lake Champlain during recovery operations in the western Atlantic Ocean. Shepard and the Mercury spacecraft designated the ?Freedom 7? (floating in water below) were flown to the deck of the recovery ship within 11 minutes of splashdown. MR-3 was the United States? first manned space mission. The spacecraft attained a maximum speed of 5,180 miles per hour, reached an altitude of 116 1/2 statute miles, and landed 302 statute miles downrange from Cape Canaveral, Florida. The suborbital mission lasted 15 minutes and 22 seconds. Photo credit: NASA or National Aeronautics and Space Administration

S61-02740 (5 May 1961) --- Astronaut Alan B. Shepard Jr. has his heart rate checked prior to his Mercury-Redstone 3 (MR-3) mission, the first American manned suborbital spaceflight. The attending physician is Dr. William K. Douglas. Photo credit: NASA or National Aeronautics and Space Administration

S66-50713 (12 Sept. 1966) --- Astronaut Alan B. Shepard Jr., Chief, MSC Astronaut Office, shields his eyes from the sun as he follows the Gemini-11 liftoff. Onboard were astronauts Charles Conrad Jr., command pilot, and Richard F. Gordon Jr., pilot, scheduled for a three-day mission in space. Liftoff was at 9:42 a.m. (EST), Sept. 12, 1966. Photo credit: NASA

S71-15273 (October 1970) --- Apollo 14 astronauts Alan B. Shepard Jr., commander (right); and Edgar D. Mitchell, lunar module pilot, practice using the Active Seismic Experiment (ASE) to set off explosions on the lunar surface and arm a mortar to launch four grenades after they leave. Measurements of the ensuing vibrations of the moon, radioed to Earth, will give scientists new information on the shape, structure and thickness of the outer lunar crust. ASE will be deployed during one of two Apollo 14 extravehicular activity (EVA) periods.

S61-02711 (5 May 1961) --- Crew members of the U.S. Navy Carrier Champlain cheer and take pictures of the arrival of the first Project Mercury pilot to fly a suborbital flight, astronaut Alan B. Shepard Jr. Two helicopters are approaching the ship, one carrying the astronaut and the other the Mercury-Redstone 3 (MR-3) capsule. Photo credit: NASA or National Aeronautics and Space Administration

S88-31374 (29 April 1961) --- A close-up of astronaut Alan B. Shepard Jr. in his space suit with his helmet on inside the Mercury capsule. He is undergoing a flight simulation test with the capsule mated to the Redstone booster. This will be the first attempt to put a man into space by the U.S. aboard a Mercury spacecraft, launched atop a Redstone rocket. The suborbital trajectory will be down the Atlantic Missile Range. Photo credit: NASA or National Aeronautics and Space Administration

S61-02749 (5 May 1961) --- Astronaut Alan B. Shepard Jr. has his blood pressure and temperature checked prior to his Mercury-Redstone 3 (MR-3) mission, the first American manned spaceflight. The attending physician is Dr. William K. Douglas. Photo credit: NASA or National Aeronautics and Space Administration

The group portrait of the original seven astronauts for the Mercury Project. NASA selected its first seven astronauts on April 27, 1959. Left to right at front: Walter M. Wally Schirra, Donald K. Deke Slayton, John H. Glenn, Jr., and Scott Carpenter. Left to right at rear: Alan B. Shepard, Virgil I. Gus Grissom, and L. Gordon Cooper, Jr.

S63-03965 (1963) --- Astronauts Alan Shepard (left) and L. Gordon Cooper Jr.(in suit) check over the instrument panel from Mercury spacecraft #20. It contains the instruments necessary to monitor spacecraft systems and sequencing, the controls required to initiate primary sequences manually, and the necessary flight control displays. Photo credit: NASA

S61-00220 (20 April 1961) --- Close-up view of astronaut Alan B. Shepard Jr. in his pressure suit, with helmet opened, for the Mercury-Redstone 3 (MR-3) flight, the first American manned spaceflight. Photo credit: NASA or National Aeronautics and Space Administration

S61-02775 (5 May 1961) --- Close-up view of astronaut Alan B. Shepard Jr. in his pressure suit, with helmet opened, for the Mercury-Redstone 3 (MR-3) flight, the first American manned spaceflight. Photo credit: NASA or National Aeronautics and Space Administration

S63-07857 (15-16 May 1963) --- Astronaut Alan Shepard (left) and Walter C. Williams monitor progress of the Mercury Atlas 9 (MA-9) mission from Mercury Control Center, Cape Canaveral, Florida. Photo credit: NASA

S61-02731 (5 May 1961) --- Astronaut Alan B. Shepard Jr. arrives at Grand Bahamas Island and is greeted by astronaut Virgil I. (Gus) Grissom after the first American suborbital flight. He will participate in a press conference with Grissom and Donald Slayton. Photo credit: NASA or National Aeronautics and Space Administration

S70-53479 (4 Nov. 1970) -- Astronaut Alan B. Shepard Jr., Apollo 14 commander, pulls the modular equipment transporter (MET) under weightless conditions aboard an Air Force KC-135 out of Patrick Air Force Base. Astronaut Edgar D. Mitchell, Apollo 14 lunar module pilot, is behind the MET. The KC-135 aircraft, flying a parabolic curve, creates a weightless environment providing a training exercise in preparation for the astronauts' extravehicular activities (EVA) on the lunar surface. This training simulates the 1/6 gravity the astronauts will encounter on the moon.

From left, NASA Deputy Director, Planetary Science Division, Science Mission Directorate, Jim Adams, NASA Kennedy Space Center Director of Education and External Relations Cheryl Hurst, United States Postal Service Vice President of Finance Steve Masse, NASA Mercury Astronaut Scott Carpenter, NASA Administrator Charles Boldin, Daughters of NASA astronaut Alan Shepard, Alice Wackermann, Laura Shepard Churchley, and Julie Jenkins, and NASA Kennedy Space Center Director Robert Cabana pose for a photograph during an unveiling ceremony of two USPS stamps that commemorate and celebrate 50 years of US Spaceflight and the MESSENGER program during an event, Wednesday, May 4, 2011 at the NASA Kennedy Space Center in Cape Canaveral, Fla. One stamp commemorates NASA’s Project Mercury, America’s first manned spaceflight program, and NASA astronaut Alan Shepard’s historic flight on May 5, 1961, aboard spacecraft Freedom 7. The other stamp draws attention to NASA’s unmanned MESSENGER mission, a scientific investigation of the planet Mercury. On March 17, 2011, MESSENGER became the first spacecraft to enter into orbit around Mercury. Photo Credit: (NASA/Bill Ingalls)

NASA Mars Exploration Rover Opportunity recorded this view of a crater informally named Freedom 7 shortly before the 50th anniversary of the first American in space: astronaut Alan Shepard flight in the Freedom 7 spacecraft.

S63-02082 (5 May 1961) --- Astronaut Alan B. Shepard Jr., attired in his Mercury pressure suit, poses for a photo prior to his launch in a Mercury-Redstone 3 (MR-3) spacecraft from Cape Canaveral on a suborbital mission ? the first U.S. manned spaceflight. Photo credit: NASA or National Aeronautics and Space Administration

Vice President Mike Pence, second from left, tours the Blue Origin Manufacturing Facility near NASA's Kennedy Space Center in Florida, on Feb. 20, 2018. At far left is the vice president's wife, Karen Pence. To the right of Vice President Pence are acting NASA Administrator Robert Lightfoot and Blue Origin CEO Robert Smith. Pence viewed the flown New Shepard Booster and Crew Capsule. The Crew Capsule, in view, flew seven times, including a pad abort test and an escape test at maximum dynamic pressure. During his visit, Pence will chair a meeting of the National Space Council on Feb. 21, 2018 in the high bay of NASA Kennedy Space Center's Space Station Processing Facility. The council's role is to advise the president regarding national space policy and strategy, and review the nation's long-range goals for space activities.

Vice President Mike Pence, second from left, tours the Blue Origin Manufacturing Facility near NASA's Kennedy Space Center in Florida, on Feb. 20, 2018. At left is the vice president's wife, Karen Pence. To his right are Blue Origin CEO Robert Smith, and acting NASA Administrator Robert Lightfoot. Vice President Pence viewed the flown New Shepard Booster and Crew Capsule. The booster was the first launch vehicle with a successful vertical takeoff and vertical landing to demonstrate reusability. During his visit, Pence will chair a meeting of the National Space Council on Feb. 21, 2018 in the high bay of NASA Kennedy Space Center's Space Station Processing Facility. The council's role is to advise the president regarding national space policy and strategy, and review the nation's long-range goals for space activities.

Vice President Mike Pence, hidden at right, tours the Blue Origin Manufacturing Facility near NASA's Kennedy Space Center in Florida, on Feb. 20, 2018. At far right is the vice president's wife, Karen Pence. Behind her at right are Blue Origin CEO Robert Smith, and acting NASA Administrator Robert Lightfoot. Vice President Pence viewed the flown New Shepard Booster and Crew Capsule. The booster was the first launch vehicle with a successful vertical takeoff and vertical landing to demonstrate reusability. During his visit, Pence will chair a meeting of the National Space Council on Feb. 21, 2018 in the high bay of NASA Kennedy Space Center's Space Station Processing Facility. The council's role is to advise the president regarding national space policy and strategy, and review the nation's long-range goals for space activities.