Milestones of Space

Eleven Iconic Objects from the Smithsonian National Air and Space Museum

Michael Neufeld

• Publisher: Zenith Press
• Year: 2014
• ISBN:
  9781627882033
• Topic: Tecnología e ingeniería
• Subtopic: Ingeniería aeronáutica y astronáutica

A beautifully illustrated history of the exploration of space through the most iconic objects from the Smithsonian National Air and Space Museum. Throughout the whole of human history, across all of Earth's cultures and landscapes, countless individuals have gazed with wonder in the same direction: upwards. Getting to space was no easy task, and our curiosity with the surrounding universe has long been a source of earthly pride and competition. At the bottom of this international technological rivalry, though, lies one unifying purpose, which is to understand the impossibly vast heavens. In Milestones of Space, Michael Neufeld and select curators of the Smithsonian National Air and Space Museum present a gorgeous photographic celebration of some of the most groundbreaking artifacts that played key parts in giving humanity its first steps into the cosmos. Focusing on the most iconic objects and technology—such as Friendship 7, the Lunar Module 2, Neil Armstrong's Lunar Suit, the Hubble Space Telescope, and Space Shuttle Discovery—this book extensively profiles eleven of the NASM's most important breakthroughs in space technology. The NASM curators feature each object in incredible detail with compelling timelines, sidebars and captions, and over 150 archival images that provide new and little-known insights into their development and historical context. We are still a long way from grasping our universe... but for now, Milestones of Space magnificently commemorates the individuals and inventions that have taken us this far.

Friendship 7 in the Milestones of Flight gallery at the National Air and Space Museum. NASM

ON FEBRUARY 20, 1962, astronaut John H. Glenn Jr., became the first American to orbit Earth. He made three trips around the world in Friendship 7, a small spacecraft weighing barely more than a ton and a half, which had been hurled into orbit by an Atlas intercontinental ballistic missile (ICBM). Glenn was the fifth person in space, following two Soviet cosmonauts who had orbited and two American astronauts who had made suborbital trips of fifteen minutes. Because he was the first to match the Soviet achievement of orbiting, his fame in the United States quickly eclipsed even that of the first American in space, Alan B. Shepard. As a result, Friendship 7 was chosen for the Milestones of Flight gallery at the National Air and Space Museum when it was opened in 1976—not Shepard’s Freedom 7.

Project Mercury, the name given to the initiative to put an American in orbit, had its origin in the immediate aftermath of the Soviet Sputnik surprise of October 4, 1957. The orbiting of a satellite immediately legitimized the Soviet claim of having tested an ICBM—thus making the nuclear threat much more real. Sputnik also hurt American pride as it seemed to demonstrate Soviet scientific and technical superiority, provoking an outcry in the press and in Congress against President Dwight Eisenhower’s administration. When the Soviets sent a dog into orbit in early November, and the first U.S. satellite launching attempt ended in an embarrassing launch pad explosion in early December, it only strengthened the public and scientific outcry. Eisenhower reluctantly conceded to the demands for an accelerated national space program.

This green light only exacerbated the rivalries among the military services, who vied for a place in space, as well as in long-range missile programs. The army and air force started competing plans for launching humans. Annoyed, and advised both by politicians and scientists that a civilian space agency would best represent America’s international image in the Cold War, Eisenhower proposed the National Aeronautics and Space Administration (NASA), which was to be built on the foundation of the National Advisory Committee for Aeronautics (NACA). The president also made the new agency responsible for the first experimental human space program. When NASA came into existence on October 1, 1958, it created Project Mercury to put one man into orbit. At the time, only men were considered for the job that NASA soon dubbed “astronaut”; women pilots who later privately took the astronaut medical exam were rebuffed by the agency.

Pre-Sputnik space advocates imagined that humans would travel to orbit in multiperson spaceplanes. But in a mad dash to beat the Soviets, developing a spaceplane was a luxury the United States could not afford—at least for the first program. The quick-and-dirty approach was to create a ballistic capsule, essentially a missile nosecone big enough to hold a passenger and the systems needed to keep him alive and get him back to Earth. At the NASA Langley Research Center in Hampton, Virginia, aeronautical engineer Max Faget had already drawn a conical spacecraft with a cylindrical nose. The broad, flat base was covered by a heat shield that would create a shock wave to slow the spacecraft down and ward off the intense heat that would be created by plowing into the Earth’s atmosphere at only slightly less than the orbital speed of 17,500 mph. Protecting the capsule was technology directly derived from ICBM warheads, either heavy metal “heat sinks” or fiberglass and resin “ablative heat shields” that would erode during the reentry. The latter type was used on Friendship 7 and all Mercury orbital missions.

An early publicity shot of the seven Mercury astronauts, probably taken soon after their selection was announced in April 1959. From left to right, sitting: Virgil I. “Gus” Grissom, M. Scott Carpenter, Walter “Deke” Slayton, and L. Gordon Cooper Jr. Standing: Alan B. Shepard Jr., Walter M. Schirra, and John H. Glenn Jr. NASA/NASM

The only big rocket the United States had in 1958 that could launch such a spacecraft was the air force’s Atlas, the nation’s first ICBM. But the Atlas was still early in its development and had an alarming tendency to blow up. Robert Gilruth’s Space Task Group, which was based at the Langley Center and was responsible for Project Mercury, therefore decided that early space missions to test the capsule and train the astronauts were advisable. Adopting an idea from the army’s short-lived human space project, the task group also decided to use that service’s Redstone tactical ballistic missile, which could send the capsule up to a hundred miles in altitude but could achieve only about one-third the velocity needed to reach orbit.

In April 1959, NASA introduced its first seven astronauts who, by presidential order, were chosen from the pool of active military test pilots. Not wanting to be thought of merely as passengers, the astronauts moved quickly to put their stamp on the program. The Mercury capsule was being designed for automatic operation, in large part because the medical effects of spaceflight were unknown. Some doctors imagined that weightlessness and isolation would create physical or psychological problems that would incapacitate the astronaut. Unimpressed by these scenarios of doom, the seven intervened to have a window placed above the pilot’s head and requested various changes to the cockpit layout that would increase control if the automatic systems malfunctioned.

JOHN HERSCHEL GLENN JR.
PILOT AND POLITICIAN

Before John Glenn was a famous astronaut, he was a well-known marine test pilot. In Project Bullet, he set a transcontinental speed record in July 1957 of 3 hours and 23 minutes, flying a F8U Crusader. It was the first coast-to-coast supersonic flight, an accomplishment that probably got him his national appearance on the TV game show Name That Tune in the fall of 1957.

Born on July 18, 1921, in Cambridge, Ohio, Glenn grew up and went to school in nearby New Concord. In 1942 he volunteered for the Marine Corps, and before he went overseas he married his childhood sweetheart, Anna Castor. They later had two children. Glenn flew fifty-nine combat missions in an F4U Corsair in the Pacific in 1944–45. During the Korean War, he served two combat tours in jet fighters, first in F9F Panthers in the marines and then in the F-86 Sabrejet on an exchange tour with the air force. Near the end of the war, he shot down three MiG-15s. In 1956, he was assigned to the Naval Test Pilot School at Patuxent River, Maryland, and was serving as a test pilot for the Navy Bureau of Aeronautics when he was chosen as one of NASA’s seven Mercury astronauts in 1959.

The heroic status he acquired from his flight in Friendship 7 brought him close to President John F. Kennedy and the Kennedy family and made it even more unlikely that he would ever be assigned to another space mission. Glenn resigned from the astronaut corps in January 1964, as he had decided to run for office as a Democrat. He retired from the marines as a colonel a year later, shortly after losing an election to become U.S. senator from Ohio. After a stint as a corporate executive, he finally was elected to the Senate in 1974, and he served until the beginning of 1999.

At the end of his final term, Glenn got a chance to return to space when his campaign for a space shuttle mission bore fruit. He was assigned to STS-95, with the purpose of researching the effects of spaceflight on the aging body (he was seventy-seven). He flew nine days, from October 29 to November 7, 1998, in the shuttle Discovery as a payload specialist. He still holds the record as the oldest person ever to fly in space. For his accomplishments in space and on the ground, he received a Congressional Gold Medal in 2009 and a Presidential Medal of Freedom in 2012.

Marine Maj. John Glenn with the Vought F8U Crusader aircraft he used in Project Bullet to set a transcontinental speed record in July 1957. NASM

Although the Mercury program proved longer and more complicated than expected, by the end of 1960 the Space Task Group launched the first unmanned Mercury-Redstone suborbital mission, followed by chimpanzee Ham in January 1961 (the doctors required one such live-subject mission before the first human suborbital and orbital flights). While Ham returned safely, any hope that the United States would be first in space was dashed on April 12, when Yuri Gagarin made one orbit around Earth in the Soviet spacecraft Vostok 1. On May 5, Alan Shepard accomplished his suborbital flight, followed in July by Virgil “Gus” Grissom. John Glenn acted as backup astronaut for both. Gherman Titov spent an entire day in orbit in early August. But even without the new Soviet triumph, it was clear to Gilruth’s team that another suborbital test would just delay the orbital flights without producing much new knowledge. It was time to move on—giving Glenn the chance to become the first American in orbit.

The headline in The Huntsville (Alabama) Times after the successful one-orbit flight of Yuri Gagarin on April 12, 1961, shows the impact of the first human spaceflight on world opinion. NASM

Glenn enters Friendship 7 on the morning of the launch, February 20, 1962. Getting into the cramped cockpit was a very tight fit and required the assistance of a couple of technicians. NASA/NASM

The launch of Friendship 7 on the Mercury-Atlas 6 mission. The booster was a modified ICBM. On the top of the spacecraft is the “escape tower.” It has a powerful solid-fuel rocket to yank the capsule away in the case of an emergency. As both the Mercury-Atlas 1 and 3 boosters had exploded in unmanned tests, a successful launch was far from assured. NASA

In September 1961, a capsule made one orbit on the Mercury-Atlas 4 mission, with a “crewman simulator” inside to test the environmental control system. The capsule had been refurbished after its escape system had rescued it from an exploding booster in April, an indication of how dangerous such a flight was for the astronaut. The next mission featured the chimp Enos, who went around the Earth twice in November before the attitude control system used up too much hydrogen peroxide fuel for the control jets, forcing a mission termination before the nominal three-orbit Mercury mission could be completed. Enos’s return to Earth was enough to finally give John Glenn the go-ahead to fly on Mercury-Atlas 6.

Glenn decided to name his spacecraft Friendship 7, following the tradition established by Shepard, who had added the number seven to signify the members of the astronaut team. But technical problems soon pushed the flight into January 1962, which was only the beginning of the mission’s problems. The patience of the press and the public soon wore thin after several more postponements, many due to cloudy winter weather at the launch site: Cape Canaveral, Florida. After the unmanned Mercury-Atlas 1 had exploded in 1959, NASA had instituted a rule that launches must be visible for filming, so that accidents might be more easily investigated.

Finally, on February 20, the weather began to improve. Glenn rose at 2:20 a.m. Eastern time, had breakfast, suited up, and shortly after 6:00 entered the spacecraft. (So tight was the fit that the astronauts joked: “You don’t get into it, you put it on.”) Technicians strapped him into his form-fitting fiberglass co...

Table of contents

• Cover
• Title Page
• Contents
• Foreword and Acknowledgments
• Chapter 1 Mercury Capsule Friendship 7 Michael J. Neufeld
• Chapter 2 Telstar Martin Collins
• Chapter 3 The Corona KH-4B Camera James E. David
• Chapter 4 The F-1 Engine Thomas C. Lassman
• Chapter 5 Lunar Module LM-2 Hunter Hollins and Allan Needell
• Chapter 6 Neil Armstrong’s A7-L Spacesuit Cathleen S. Lewis
• Chapter 7 Skylab Stuart W. Leslie and Layne Karafantis
• Chapter 8 The Viking Lander Roger D. Launius
• Chapter 9 Voyagers 1 and 2 Roger D. Launius
• Chapter 10 Space Shuttle Discovery Valerie Neal
• Chapter 11 The Hubble Space Telescope David H. DeVorkin
• Suggestions For Further Reading
• Index
• Copyright