Michael "Mike" Collins (October 31, 1930 – April 28, 2021) was an American astronaut who flew the Apollo 11 command module Columbia around the Moon in 1969 while his crewmates, Neil Armstrong and Buzz Aldrin, made the first crewed landing on the surface. He was also a test pilot and major general in the U.S. Air Force Reserve.

Born in Rome, Italy, where his father was serving as the U.S. military attaché, Collins graduated in the Class of 1952 from the United States Military Academy. He followed his father, brother, uncle, and cousin into the military. He joined the United States Air Force, and flew F-86 Sabre fighters at Chambley-Bussières Air Base, France. He was accepted into the U.S. Air Force Experimental Flight Test Pilot School at Edwards Air Force Base in 1960, also graduating from the Aerospace Research Pilot School (Class III).

Selected as part of NASA's third group of 14 astronauts in 1963, Collins flew in space twice. His first spaceflight was on Gemini 10 in 1966, in which he and Command Pilot John Young performed orbital rendezvous with two spacecraft and undertook two extravehicular activities (EVAs, also known as spacewalks). On the 1969 Apollo 11 mission, he became one of 24 people to fly to the Moon, which he orbited thirty times. He was the fourth person (and third American) to perform a spacewalk, the first person to have performed more than one spacewalk, and, after Young, who flew the command module on Apollo 10, the second person to orbit the Moon alone.

After retiring from NASA in 1970, Collins took a job in the Department of State as Assistant Secretary of State for Public Affairs. A year later, he became the director of the National Air and Space Museum, and held this position until 1978, when he stepped down to become undersecretary of the Smithsonian Institution. In 1980, he took a job as vice president of LTV Aerospace. He resigned in 1985 to start his own consulting firm. Along with his Apollo 11 crewmates, Collins was awarded the Presidential Medal of Freedom in 1969 and the Congressional Gold Medal in 2011.

Collins was born on October 31, 1930, in Rome, Italy. He was the second son of James Lawton Collins, a career U.S. Army officer, who was the U.S. military attaché there from 1928 to 1932, and Virginia C. Collins (née Stewart). Collins had an older brother, James Lawton Collins Jr. and two older sisters, Virginia and Agnes. Collins' mother was of British descent, and his father's family hailed from Ireland.

For the first 17 years of his life, Collins lived in many places as the Army posted his father to different locations: Rome; Oklahoma; Governors Island, New York; Fort Hoyle (near Baltimore, Maryland); Fort Hayes (near Columbus, Ohio); Puerto Rico; San Antonio, Texas; and Alexandria, Virginia. During his boyhood, Collins was an altar boy who served at the National Cathedral in Washington DC, but in his own words, he was "probably the only astronaut who had never been a Boy Scout". He took his first plane ride in Puerto Rico aboard a Grumman Widgeon; the pilot allowed him to fly it for a portion of the flight. He wanted to fly again, but since World War II started soon after, he was unable. He studied for two years in the Academia del Perpetuo Socorro in San Juan, Puerto Rico.

After the United States entered World War II, the family moved to Washington, D.C., where Collins attended St. Albans School and graduated in 1948. His mother wanted him to enter the diplomatic service, but he decided to follow his father, two uncles, brother, and cousin into the armed services. He received an appointment to the United States Military Academy at West Point, New York, from which his father and his older brother had graduated in 1907 and 1939 respectively. He graduated on June 3, 1952, with a Bachelor of Science degree in military science, finishing 185th of 527 cadets in the class, which included future fellow astronaut Ed White.

Collins' decision to join the United States Air Force (USAF) was motivated by both the wonder of what the next fifty years might bring in aeronautics, and to avoid accusations of nepotism had he joined the Army—where his brother was already a colonel, his father had reached the rank of major general and his uncle, General J. Lawton Collins (1896–1987), was the Chief of Staff of the United States Army. The Air Force Academy, still under construction, would not graduate its first class for several years. In the interim, graduates of the Military Academy were eligible for Air Force commissions. Promotion was slower in the Air Force than in the Army, due to the large number of young officers who had been commissioned and promoted during World War II.

Collins began basic flight training in the T-6 Texan at Columbus Air Force Base in Columbus, Mississippi, in August 1952, then moved on to San Marcos Air Force Base in Texas to learn instrument and formation flying, and finally to James Connally Air Force Base in Waco, Texas, for training in jet aircraft. Flying came easily to him, and unlike many of his colleagues, he had little fear of failure. He was awarded his wings upon completion of the course at Waco, and in September 1953, he was chosen for advanced day-fighter training at Nellis Air Force Base, Nevada, flying F-86 Sabres. The training was dangerous; eleven people were killed in accidents during the 22 weeks he was there.

This was followed by an assignment in January 1954 to the 21st Fighter-Bomber Wing at George Air Force Base, California, where he learned ground attack and nuclear weapons delivery techniques in the F-86. He moved with the 21st to Chambley-Bussières Air Base, France, in December 1954. He won first prize in a 1956 gunnery competition. During a NATO exercise that year, he was forced to eject from an F-86, near Chaumont-Semoutiers AB, after a fire started aft of the cockpit.

Collins met his future wife, Patricia Mary Finnegan from Boston, Massachusetts, in an officers' mess. A graduate of Emmanuel College, where she majored in English, she was a social worker, dealing mainly with single mothers. To see more of the world, she was working for the Air Force service club. After getting engaged, they had to overcome a difference in religion. Collins was raised nominally Episcopalian, while Finnegan came from a staunchly Roman Catholic family. Collins converted to Catholicism before their marriage. After seeking permission to marry from Finnegan's father, and delaying their wedding when Collins was redeployed to West Germany during the 1956 Hungarian Revolution, they married in 1957. They had a daughter, actress Kate Collins, in 1959, a second daughter, Ann, in 1961 and a son, Michael, in 1963.

After Collins returned to the United States in late 1957, he attended an aircraft maintenance officer course at Chanute Air Force Base, Illinois. He would later describe this school as "dismal" in his autobiography; he found the classwork boring, flying time scarce, and the equipment outdated. Upon completing the course, he commanded a Mobile Training Detachment (MTD) and traveled to air bases around the world. The detachment trained mechanics on the servicing of new aircraft, and pilots how to fly them. He later became the first commander of a Field Training Detachment (FTD 523) back at Nellis AFB, which was a similar kind of unit, except that the students traveled to him.

Collins' MTD posting allowed him to accumulate over 1,500 flying hours, the minimum required for admission to the USAF Experimental Flight Test Pilot School at Edwards Air Force Base, California. His application was successful, and on August 29, 1960, he became a member of Class 60C, which included Frank Borman, Jim Irwin and Tom Stafford, who later became astronauts. Military test pilot instruction started with the North American T-28 Trojan, and proceeded through the high performance F-86 Sabre, B-57 Canberra, T-33 Shooting Star, and the F-104 Starfighter. Collins was a heavy smoker, but quit in 1962 after suffering a particularly bad hangover. The next day, he spent what he described as the worst four hours of his life in the co-pilot's seat of a B-52 Stratofortress while going through the initial stages of nicotine withdrawal.

The inspiration for Collins in his decision to become a NASA astronaut was the Mercury Atlas 6 flight of John Glenn on February 20, 1962, and the thought of being able to circle the Earth in 90 minutes. Collins applied for the second group of astronauts that year. To raise the numbers of Air Force pilots selected, the Air Force sent their best applicants to a "charm school". Medical and psychiatric examinations at Brooks Air Force Base, Texas, and interviews at the Manned Spacecraft Center (MSC) in Houston followed. In mid-September, he found out he had not been accepted. It was a blow even though he did not expect to be selected. Collins rated the second group of nine as better than the Mercury Seven who preceded them, or the five groups that followed, including his own.

That year the USAF Experimental Flight Test Pilot School became the USAF Aerospace Research Pilot School (ARPS), as the Air Force tried to enter into space research through the X-15 and X-20 programs. Collins applied for a new postgraduate course offered into the basics of spaceflight. He was accepted into the third class on October 22, 1962. Other students in his eleven-member class included three future astronauts: Charles Bassett, Edward Givens and Joe Engle. Along with classwork, they also flew up to about 90,000 feet (27,000 m) in F-104 Starfighters. As they passed through the top of their arc, they would experience a brief period of weightlessness. On finishing this course he returned to fighter operations in May 1963.

At the start of June, NASA once again called for astronaut applications. Collins went through the same process as with his first application, though he did not take the psychiatric evaluation. He was at Randolph Air Force Base, Texas, on October 14 when Deke Slayton, the Chief of the Astronaut Office at NASA, called and asked if he was still interested in becoming an astronaut. Charles Bassett was also accepted. By this time Collins had flown over 3,000 hours, of which 2,700 were in jet aircraft.

Compared with the first two groups of astronauts, the third group of fourteen astronauts, which included Collins, was younger, with an average age of 31—the first two groups had an average age of 34.5 and 32.5 at their time of selection—and was better educated, with an average of 5.6 years of tertiary education; but they had fewer flying hours—2,300 on average compared with 3,500 and 2,800 for the first two groups, and only eight of the fourteen were test pilots. Of the thirty astronauts selected in the first three groups, only Collins and his third group colleague William Anders were born outside the United States, and Collins was the only one with an older brother; all the rest were the eldest or only sons in their families. Training began with a 240-hour course on the basics of spaceflight. Fifty-eight hours of this was devoted to geology, something Collins did not readily understand and in which he never became very interested. At the end, Alan Shepard, the Chief of the Astronaut Office, asked the fourteen to rank their fellow astronauts in the order they would want to fly with them in space. Collins picked David Scott in the number one position.

After this basic training, the third group was assigned specializations. Collins received his first choice: pressure suits and extravehicular activities (EVAs, also known as spacewalks). His job was to monitor development and act as a liaison between the Astronaut Office and contractors. He was disturbed by the secretive planning of Ed White's EVA on Gemini 4, because he was not involved despite being the person with the greatest knowledge of the subject.

In late June 1965, Collins received his first crew assignment: the backup pilot for Gemini 7, with his West Point classmate Ed White named as the backup mission commander. Collins was the first of the fourteen to receive a crew assignment, but the first to fly was Scott on Gemini 8, and Charles Bassett was assigned to Gemini 9. Under the system of crew rotation established by Slayton, being on the backup crew of Gemini 7 set Collins up to pilot Gemini 10. Gemini 7 was commanded by Borman, whom Collins knew well from their days at Edwards, with Jim Lovell as the pilot. Collins made a point of providing a daily briefing to their wives, Susan Borman and Marilyn Lovell, on the progress of the two-week Gemini 7 mission.

After the successful completion of Gemini 7 on January 24, 1966, Collins was assigned to the prime crew of Gemini 10, but with John Young as mission commander, as White moved on to the Apollo program. Jim Lovell and Buzz Aldrin were designated as the backup commander and pilot respectively. The arrangements were disturbed on February 28 by the deaths of the Gemini 9 crew, Charles Bassett and Elliot See, in the 1966 NASA T-38 crash. They were replaced on Gemini 9 by their backups, Stafford and Gene Cernan. Cernan was the second of the fourteen to fly in space. Lovell and Aldrin became their backups, and Alan Bean and C.C. Williams took their place as the Gemini 10 backup crew. Collins would be the seventeenth American, and third member of his group, to fly in space.

Training for Gemini 10 was interrupted in March when Slayton diverted Young, Collins and Williams to represent their respective services on a panel to select another group of astronauts, along with himself, Shepard, spacecraft designer Max Faget, and astronaut training officer Warren J. North. Young protested the loss of a week's training to no avail. Applying strict criteria for age, flying experience and education reduced the number of applicants to 35. The panel interviewed each for an hour, and rated nineteen as qualified. Collins was surprised when Slayton elected to take them all. Slayton later admitted that he too had doubts; he already had enough astronauts for Project Apollo as far as the first Moon landing, but post-Apollo plans were for up to 30 missions. Such a large intake therefore seemed prudent. Ten of the nineteen had test pilot experience, and seven were graduates of the ARPS.

Fifteen scientific experiments were carried on Gemini 10—more than any other Gemini mission except the two-week-long Gemini 7. After Gemini 9's EVA ran into problems, the remaining Gemini objectives had to be completed on the last three flights. While the overall number of objectives increased, the difficulty of Collins' EVA was scaled significantly back. There was no backpack or astronaut maneuvering unit (AMU), as there had been on Gemini 8.

Their three-day mission called for them to rendezvous with two Agena Target Vehicles, undertake two EVAs, and perform 15 different experiments. The training went smoothly, as the crew learned the intricacies of orbital rendezvous, controlling the Agena and, for Collins, the EVA. For what was to be the fourth ever EVA, underwater training was not performed, mostly because Collins did not have the time. To train to use the nitrogen gun he would use for propulsion, a smooth metal surface about the size of a boxing ring was set up. He would stand on a circular pad that used gas jets to raise itself off the surface. Using the nitrogen gun he would practice propelling himself across the "slippery table".

Gemini 10 lifted off from Launch Complex 19 at Cape Canaveral at 17:20 local time on July 18, 1966. Upon reaching orbit, it was about 860 nautical miles (1,600 km) behind the Agena target vehicle, which had been launched 100 minutes earlier. A rendezvous was achieved on Gemini 10's fourth orbit at 10:43, followed by docking at 11:13. The mission plan called for multiple dockings with the Agena target, but an error by Collins in using the sextant caused them to burn valuable propellant, resulting in Mission Control calling off this objective to conserve propellant. Once docked, the Agena 10 propulsion system was activated to boost the astronauts to a new altitude record, 475 miles (764 km) above the Earth, breaking the previous record of 295 miles (475 km) set by Voskhod 2.

A second burn of the Agena 10 engine at 03:58 on July 19 put them into the same orbit as Agena 8, which had been launched for the Gemini 8 mission on March 16. For his first EVA Collins did not leave the Gemini capsule, but stood up through the hatch with an ultraviolet camera. After he took the ultraviolet photos, Collins took photos of a plate they brought with them. They were used to compare photos taken in space with those taken in a laboratory. In his biography he said he felt at that moment like a Roman god riding the skies in his chariot.

The EVA started on the dark side of the Earth so Collins could take photos of the Milky Way. Collins' and Young's eyes began to water, forcing an early end to the EVA. Lithium hydroxide, which was normally used to remove exhaled carbon dioxide from the cabin, had accidentally been fed into the astronauts' space suits. The compressor causing the problem was switched off, and a high oxygen flow was used to purge the environmental control system.

Prior to Collins' second EVA, the Agena 10 spacecraft was jettisoned. Young positioned the capsule close enough to Agena 8 for Collins to get to it while attached to his 49-foot (15 m) umbilical. Collins became the first person to perform two spacewalks in the same mission. He found it took much longer to complete tasks than he expected, something Cernan also experienced during his spacewalk on Gemini 9. He removed a micrometeorite experiment from the exterior of the spacecraft, and configured his nitrogen maneuvering thruster. Collins had difficulty reentering the spacecraft, and needed Young to pull him back in with the umbilical.

The duo activated the retrorockets on their 43rd orbit, and they splashed down in the Atlantic at 16:06 on July 21, 3.5 nautical miles (6.5 km) from the recovery vessel, the amphibious assault ship USS Guadalcanal, and were picked up by helicopter. Collins and Young completed nearly all the major objectives of the flight. The docking practice and the landmark measurement experiment were cancelled in order to conserve propellant, and the micrometeorite collector was lost when it drifted out of the spacecraft.

Shortly after Gemini 10, Collins was assigned to the backup crew for the second crewed Apollo flight, with Borman as commander (CDR), Stafford as command module pilot (CMP), and Collins as lunar module pilot (LMP). Along with learning the new Apollo command and service module (CSM) and the Apollo Lunar Module (LM), Collins received helicopter training, as these were thought to be the best way to simulate the landing approach of the LM. After the completion of Project Gemini, it was decided to cancel the Apollo 2 flight, since it would just repeat the Apollo 1 flight. Stafford was given his own crew, and Anders was assigned to Borman's crew. Slayton had decided an Apollo mission commander should be an experienced astronaut who had already flown a mission, and that on flights with a LM, the CMP should also have some spaceflight experience, something Anders did not yet have, since the CMP would have to fly the CM alone. Collins was therefore moved to the CMP position on the Apollo 9 prime crew, and Anders became the LMP. The practice became that the CMP would be the next most senior member of the crew, and that they would go on to command later Apollo flights.

Staff meetings were always held on Fridays in the Astronaut Office, and it was here that Collins found himself on January 27, 1967. Don Gregory was running the meeting in the absence of Shepard and so it was he who answered the red phone to be informed there had been a fire in the Apollo 1 CM, and that the three astronauts, Gus Grissom, Ed White and Roger Chaffee were dead. When the enormity of the situation was ascertained, it fell on Collins to go to the Chaffee household to inform Martha Chaffee that her husband had died. The Astronaut Office had learned to be proactive in informing astronauts' families of a death quickly, because of the death of Theodore Freeman in an aircraft crash in 1964, when a newspaper reporter was the first to his house.

Collins and Scott were sent by NASA to the Paris Air Show in May 1967. There they met cosmonauts Pavel Belyayev and Konstantin Feoktistov, with whom they drank vodka on the Soviets' Tupolev Tu-134. Collins found it interesting that some cosmonauts were doing helicopter training like their American counterparts, and Belyayev said he hoped to make a circumlunar flight soon. The astronauts' wives had accompanied them on the trip, and Collins and his wife Pat were compelled by NASA and their friends to travel to Metz, where they had been married ten years before. There, they found a third wedding ceremony had been arranged for them (ten years previously they had already had civil and religious ceremonies), so they could renew their vows.

During 1968, Collins noticed his legs were not working as they should, first during handball games, then as he walked down stairs. His knee would almost give way, and his left leg had unusual sensations when in hot and cold water. Reluctantly he sought medical advice and the diagnosis was a cervical disc herniation, requiring two vertebrae to be fused. The surgery was performed at Wilford Hall Hospital at Lackland Air Force Base, Texas. The planned recuperation time was three to six months. Collins spent three months in a neck brace. As a result, he was removed from the prime crew of Apollo 9 and his backup, Jim Lovell, replaced him as CMP. When the Apollo 8 mission was changed from a CSM/LM mission in high Earth orbit to a CSM-only flight around the Moon, both prime and backup crews for Apollo 8 and 9 swapped places.

Having trained for the flight, Collins was made a capsule communicator (CAPCOM), an astronaut stationed at Mission Control responsible for communicating directly with the crew during a mission. As part of the Green Team, he covered the launch phase up to translunar injection, the rocket burn that sent Apollo 8 to the Moon. The successful completion of the first crewed circumlunar flight was followed by the announcement of the Apollo 11 crew of Armstrong, Aldrin, and Collins. At that time, in January 1969, it was uncertain this would be the lunar landing mission; this depended on the success of Apollo 9 and Apollo 10 testing the LM.

As CMP, Collins' training was completely different from the LM and lunar EVA, and was sometimes done without Armstrong or Aldrin being present. Along with simulators, there were measurements for pressure suits, centrifuge training to simulate the reentry, and practicing docking with a huge rig at NASA Langley Research Center, Hampton, Virginia. Since he would be the active participant in the rendezvous with the LM, Collins compiled a book of 18 different rendezvous schemes for various scenarios including ones where the LM did not land, or it launched too early or too late. This book ran for 117 pages.

The mission patch of Apollo 11 was the creation of Collins. Jim Lovell, the backup commander, mentioned the idea of eagles, a symbol of the United States. Collins liked the idea and found a painting by artist Walter A. Weber in a National Geographic Society book, Water, Prey, and Game Birds of North America, traced it and added the lunar surface below and Earth in the background. The idea of an olive branch, a symbol of peace, came from a computer expert at the simulators. The call sign Columbia for the CSM came from Julian Scheer, the NASA Assistant Administrator for Public Affairs. He mentioned the idea to Collins in a conversation and Collins could not think of anything better.

During the training for Apollo 11, Slayton offered to get Collins back into the crew sequence after the flight. Collins would most likely have been the backup commander of Apollo 14, followed by commander of Apollo 17, but he told Slayton he did not want to travel to space again if Apollo 11 was successful. The difficult schedule of an astronaut strained his family life. He wanted to help achieve John F. Kennedy's goal of landing on the Moon within the decade and had no interest in further exploration of the Moon once the goal was achieved. The assignment was given to Cernan.

An estimated one million spectators watched the launch of Apollo 11 from the highways and beaches in the vicinity of the launch site. The launch was televised live in 33 countries, with an estimated 25 million viewers in the United States alone. Millions more listened to radio broadcasts. Propelled by a giant Saturn V rocket, Apollo 11 lifted off from Launch Complex 39A at the Kennedy Space Center on July 16, 1969, at 13:32 UTC (09:32 EDT), and entered Earth orbit twelve minutes later. After one and a half orbits, the S-IVB third-stage engine pushed the spacecraft onto its trajectory toward the Moon. About 30 minutes later, Collins performed the transposition, docking, and extraction maneuver. This involved separating Columbia from the spent S-IVB stage, turning around, and docking with the Lunar Module Eagle. After it was extracted, the combined spacecraft headed for the Moon, while the rocket stage flew on a trajectory past it.

On July 19 at 17:21:50 UTC, Apollo 11 passed behind the Moon and fired its service propulsion engine to enter lunar orbit. In the thirty orbits that followed, the crew saw passing views of their landing site in the southern Sea of Tranquillity about 12 miles (19 km) southwest of the crater Sabine D. At 12:52:00 UTC on July 20, Aldrin and Armstrong entered Eagle and began the final preparations for lunar descent. At 17:44:00 Eagle separated from Columbia. Collins, alone aboard Columbia, inspected Eagle as it rotated before him to ensure the craft was not damaged and that the landing gear had correctly deployed before heading for the surface.