Third-party evidence for Apollo Moon landings is evidence, or analysis of evidence, about the Moon landings that does not come from either NASA or the U.S. government (the first party), or the Apollo Moon landing hoax theorists (the second party). This evidence provides independent confirmation of NASA's account of the six Apollo program Moon missions flown between 1969 and 1972.
In this section are only those observations that are completely independent of NASA—no NASA facilities were used, and there was no NASA funding. Each of the countries mentioned in this section (Soviet Union, Japan, China, and India) has its own space program, builds its own space probes which are launched on their own launch vehicles, and has its own deep space communication network. [1]
In 2008, the Japan Aerospace Exploration Agency (JAXA) SELENE lunar probe obtained several photographs showing evidence of Moon landings. [2] On the left are two photos taken on the lunar surface by the Apollo 15 astronauts August 2, 1971 during EVA 3 at station 9A near Hadley Rille. On the right is a 2008 reconstruction from images taken by the SELENE terrain camera and 3D projected to the same vantage point as the surface photos. The terrain is a close match within the SELENE camera resolution of 10 metres.[ citation needed ]
The light-colored area of blown lunar surface dust created by the lunar module engine blast at the Apollo 15 landing site was photographed and confirmed by comparative analysis of photographs in May 2008. They correspond well to photographs taken from the Apollo 15 Command/Service Module showing a change in surface reflectivity due to the plume. This was the first visible trace of crewed landings on the Moon seen from space since the close of the Apollo program.[ citation needed ]
As with SELENE, the Terrain Mapping Camera of India's Chandrayaan-1 probe did not have enough resolution to record Apollo hardware. Nevertheless, as with SELENE, Chandrayaan-1 independently recorded evidence of lighter, disturbed soil around the Apollo 15 site. [3] [4]
In April 2021 the ISRO Chandrayaan-2 orbiter captured an image of the Apollo 11 Lunar Module Eagle descent stage. The orbiter's image of Tranquility Base, the Apollo 11 landing site, was released to the public in a presentation on September 3, 2021. [5]
China's second lunar probe, Chang'e 2, which was launched in 2010 is capable of capturing lunar surface images with a resolution of up to 1.3 metres. It claims to have spotted traces of the Apollo landings and the lunar Rover, though the relevant imagery has not been publicly identified. [6]
South Korea's lunar probe, Danuri, which was launched in 2022 is capable of capturing lunar surface images. It imaged both Apollo 11 and Apollo 17 landing sites in 2023, with a good enough resolution to spot the landers. [7]
Aside from NASA, a number of entities and individuals observed, through various means, the Apollo missions as they took place. On later missions, NASA released information to the public explaining where third party observers could expect to see the various craft at specific times according to scheduled launch times and planned trajectories. [8]
The Soviet Union monitored the missions at their Space Transmissions Corps, which was "fully equipped with the latest intelligence-gathering and surveillance equipment". [9] Vasily Mishin, in an interview for the article "The Moon Programme That Faltered", describes how the Soviet Moon programme dwindled after the Apollo landing. [10]
The missions were tracked by radar from several countries on the way to the Moon and back. [11]
A group at Kettering Grammar School, using simple radio equipment, monitored Soviet and U.S. spacecraft and calculated their orbits. [12] [13] According to the group, in December 1972 a member "picks up Apollo 17 on its way to the Moon". [14]
Apollo 8 was the first crewed mission to orbit the Moon, but did not land.
Like Apollo 8, Apollo 10 orbited the Moon but did not land.
Paul Maley reports several sightings of the Apollo 12 Command Module. [8]
Sky and Telescope magazine published reports of the optical sighting of this mission. [29]
Apollo 13 was intended to land on the Moon, but an oxygen tank explosion resulted in the mission being aborted after trans-lunar injection. It flew by the Moon but did not orbit or land.
Chabot Observatory calendar records an application of optical tracking during the final phases of Apollo 13, on April 17, 1970:
Rachel, Chabot Observatory's 20-inch refracting telescope, helps bring Apollo 13 and its crew home. One last burn of the lunar lander engines was needed before the crippled spacecraft's re-entry into the Earth's atmosphere. In order to compute that last burn, NASA needed a precise position of the spacecraft, obtainable only by telescopic observation. All the observatories that could have done this were clouded over, except Oakland's Chabot Observatory, where members of the Eastbay Astronomical Society had been tracking the Moon flights. EAS members received an urgent call from NASA Ames Research Station, which had ties with Chabot's educational program since the 60s, and they put the Observatory's historic 20-inch refractor to work. They were able to send the needed data to Ames, and the Apollo crew was able to make the needed correction and to return safely to Earth on this date in 1970. [8]
Corralitos Observatory photographed Apollo 14. [8] [30]
Sky and Telescope magazine published reports of the optical sighting of this mission. [31]
Paul Wilson and Richard T. Knadle, Jr. received voice transmissions from the Command/Service Module in lunar orbit on the morning of August 1, 1971. In an article for QST magazine they provide a detailed description of their work, with photographs. [32]
Jewett Observatory at Washington State University reported sightings of Apollo 16. [8]
At least two different radio amateurs, W4HHK and K2RIW, reported reception of Apollo 16 signals with home-built equipment. [33] [34]
Bochum Observatory tracked the astronauts and intercepted the television signals from Apollo 16. The image was re-recorded in black and white in the 625 lines, 25 frames/s television standard onto 2-inch videotape using their sole quad machine. The transmissions are only of the astronauts and do not contain any voice from Houston, as the signal received came from the Moon only. The videotapes are held in storage at the observatory. [35]
Sven Grahn of the Swedish space program has described several amateur sightings of Apollo 17. [36]
In this section is evidence, by independent researchers, that NASA's account is correct. However, at least somewhere in the investigation, there was some NASA involvement, or use of US government resources.
A total of 382 kilograms (842 lb) of Moon rocks and dust were collected during the Apollo 11, 12, 14, 15, 16 and 17 missions. [37] Some 10 kg (22 lb) of the Moon rocks have been used in hundreds of experiments performed by both NASA researchers and planetary scientists at research institutions unaffiliated with NASA. These experiments have confirmed the age and origin of the rocks as lunar, and were used to identify lunar meteorites collected later from Antarctica. [38] The oldest Moon rocks are up to 4.5 billion years old, [37] making them 200 million years older than the oldest Earth rocks, which are from the Hadean eon and dated 3.8 to 4.3 billion years ago. The rocks returned by Apollo are very close in composition to the samples returned by the independent Soviet Luna programme. [39] [40] A rock brought back by Apollo 17 was dated to be 4.417 billion years old, with a margin of error of plus or minus 6 million years. The test was done by a group of researchers headed by Alexander Nemchin at Curtin University of Technology in Bentley, Australia. [41]
The detection on Earth of reflections from laser ranging retro-reflectors (LRRRs, or arrays of corner-cube prisms used as targets for Earth-based tracking lasers) on Lunar Laser Ranging experiments left on the Moon is evidence of landings. [42] [43] [44] [45]
Quoting from James Hansen's 2005 biography of Neil Armstrong, First Man: The Life of Neil A. Armstrong :
For those few misguided souls who still cling to the belief that the Moon landings never happened, examination of the results of five decades of LRRR experiments should evidence how delusional their rejection of the Moon landing really is. [46]
The NASA-independent Observatoire de la Côte d'Azur, McDonald, Apache Point, and Haleakalā observatories regularly use the Apollo LRRR. [47] Lick Observatory attempted to detect from Apollo 11's retroreflector while Armstrong and Aldrin were still on the Moon but did not succeed until August 1, 1969. [48] The Apollo 14 astronauts deployed a retroreflector on February 5, 1971, and McDonald Observatory detected it the same day. The Apollo 15 retroreflector was deployed on July 31, 1971, and was detected by McDonald Observatory within a few days. [49]
The image on the left shows what is considered[ by whom? ] some of the most unambiguous evidence. This experiment repeatedly fires a laser at the Moon, at the spots where the Apollo landings were reported. The dots show when photons are received from the Moon. The dark line shows that a large number come back at a specific time, and hence were reflected by something quite small (well under a metre in size). Photons reflected from the surface come back over a much broader range of times (the whole vertical range of the plot corresponds to only 18 metres or so in range). The concentration of photons at a specific time appears when the laser is aimed at the Apollos 11, 14 or 15 landing sites; otherwise the expected featureless distribution is observed. [50] The Apollo reflectors are still in use. [51]
Strictly speaking, although retroreflectors left by Apollo astronauts are strong evidence that human-manufactured artifacts currently exist on the Moon and that human visitors left them there, they are not, on their own, conclusive evidence. Uncrewed missions are known to have placed such objects on the Moon, albeit not before 1970. Smaller retroreflectors were carried by the uncrewed landers Lunokhod 1 and Lunokhod 2 in 1970 and 1973, respectively. [51] The location of Lunokhod 1 was unknown for nearly 40 years but it was rediscovered in 2010 in photographs by the Lunar Reconnaissance Orbiter (LRO) and its retroreflector is now in use. Both the United States and the USSR had the capability to soft-land objects on the surface of the Moon for several years before that. The USSR successfully landed its first uncrewed probe (Luna 9) on the Moon in February 1966, and the United States followed with Surveyor 1 in June 1966, but no uncrewed landers carried retroreflectors before Lunokhod 1 in November 1970. The retroreflectors are proof that human-made probes reached the exact locations of the Apollo 11, 14, and 15 landing sites at exactly the same time as those missions.
In October–November 1977, the Soviet radio telescope RATAN-600 observed all five transmitters of ALSEP scientific packages placed on the Moon surface by all Apollo landing missions excluding Apollo 11. Their selenographic coordinates and the transmitter power outputs (20 W) were in agreement with the NASA reports. [52]
In 2002, astronomers tested the optics of the Very Large Telescope by imaging the Apollo landing sites. [53] The telescope was used to image the Moon and provided a resolution of 130 meters (430 ft), which was not good enough to resolve the 4.2 meters (14 ft) wide lunar landers or their long shadows. [54]
Post-Apollo lunar exploration missions have located and imaged artifacts of the Apollo program remaining on the Moon's surface.
Images taken by the Lunar Reconnaissance Orbiter mission beginning in July 2009 show the six Apollo Lunar Module descent stages, Apollo Lunar Surface Experiments Package (ALSEP) science experiments, astronaut footpaths, and lunar rover tire tracks. These images are the most effective proof to date to rebut the "landing hoax" theories. [55] [56] [57] Although this probe was indeed launched by NASA, the camera and the interpretation of the images are under the control of an academic group — the LROC Science Operations Center at Arizona State University, along with many other academic groups. [58] At least some of these groups, such as German Aerospace Center, Berlin, are not located in the US, and are not funded by the US government. [59]
After the images shown here were taken, the LRO mission moved into a lower orbit for higher resolution camera work. All of the sites have since been re-imaged at higher resolution. [60] [61] Comparison of the original 16 mm Apollo 17 LM camera footage during ascent to the 2011 LRO photos of the landing site show an almost exact match of the rover tracks. [62]
Further imaging in 2012 shows the shadows cast by the flags planted by the astronauts on all Apollo landing sites. The exception is that of Apollo 11, which matches Buzz Aldrin's account of the flag being blown over by the lander's rocket exhaust on leaving the Moon. [63]
Long-exposure photos were taken with the Far Ultraviolet Camera/Spectrograph by Apollo 16 on April 21, 1972, from the surface of the Moon. Some of these photos show the Earth with stars from the Capricornus and Aquarius constellations in the background. The European Space Research Organisation's TD-1A satellite later scanned the sky for stars that are bright in ultraviolet light. The TD-1A data obtained with the shortest passband is a close match for the Apollo 16 photographs. [64]
This section contains reports of the lunar missions from facilities that had significant numbers of non-NASA employees. This includes facilities such as the Deep Space Network, which employed (and still employs) many local citizens in Spain and Australia, and facilities such as the Parkes Observatory, which were hired by NASA for specific tasks, but staffed by non-NASA personnel.
The NASA Manned Space Flight Network (MSFN) was a worldwide network of stations that tracked the Mercury, Gemini, Apollo and Skylab missions. Most MSFN stations were only needed during the launch, Earth orbit and landing phases of the lunar missions, but three "deep space" sites with larger antennas provided continuous coverage during the trans-lunar, trans-Earth and lunar mission phases. Today, these three sites form the NASA Deep Space Network: the Goldstone Deep Space Communications Complex near Goldstone, California; the Madrid Deep Space Communication Complex near Madrid, Spain; and the Canberra Deep Space Communication Complex, adjacent to the Tidbinbilla Nature Reserve, near Canberra, Australia.
Although most MSFN stations were NASA-owned, they employed many local citizens. NASA also contracted the Parkes Observatory in New South Wales, Australia, to supplement the three deep space sites, most famously during the Apollo 11 EVA as documented by radio astronomer John Sarkissian [65] and portrayed (humorously and not quite accurately) in the 2000 film The Dish . The Parkes Observatory is not NASA-owned; it is, and always has been, owned and operated by the Commonwealth Scientific and Industrial Research Organisation (CSIRO), a research agency of the Australian government. It would have been relatively easy for NASA to avoid using the Parkes Observatory to receive the Apollo 11 EVA television signals by scheduling the EVA at an earlier time when the Goldstone station could provide complete coverage.
Parts of Surveyor 3, which landed on the Moon in April 1967, were brought back to Earth by Apollo 12 in November 1969. [68] These samples were shown to have been exposed to lunar conditions. [69]
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: CS1 maint: numeric names: authors list (link)The TLI firing was begun at 7:41 a.m. (PST) while the craft was over Hawaii, and it was reported there that the burn was visible from the ground.
NASA's Lunar Reconnaissance Orbiter, or LRO, has returned its first imagery of the Apollo Moon landing sites. The pictures show the Apollo missions' lunar module descent stages sitting on the moon's surface, as long shadows from a low sun angle make the modules' locations evident.
Apollo 11 was a spaceflight conducted by the United States from July 16 to July 24, 1969. It marked the first time in history that humans landed on the Moon. Commander Neil Armstrong and Lunar Module Pilot Buzz Aldrin landed the Apollo Lunar Module Eagle on July 20, 1969, at 20:17 UTC, and Armstrong became the first person to step onto the Moon's surface six hours and 39 minutes later, on July 21 at 02:56 UTC. Aldrin joined him 19 minutes later, and they spent about two and a quarter hours together exploring the site they had named Tranquility Base upon landing. Armstrong and Aldrin collected 47.5 pounds (21.5 kg) of lunar material to bring back to Earth as pilot Michael Collins flew the Command Module Columbia in lunar orbit, and were on the Moon's surface for 21 hours, 36 minutes, before lifting off to rejoin Columbia.
The Apollo program, also known as Project Apollo, was the United States human spaceflight program carried out by the National Aeronautics and Space Administration (NASA), which succeeded in preparing and landing the first men on the Moon from 1968 to 1972. It was first conceived in 1960 during President Dwight D. Eisenhower's administration as a three-person spacecraft to follow the one-person Project Mercury, which put the first Americans in space. Apollo was later dedicated to President John F. Kennedy's national goal for the 1960s of "landing a man on the Moon and returning him safely to the Earth" in an address to Congress on May 25, 1961. It was the third US human spaceflight program to fly, preceded by the two-person Project Gemini conceived in 1961 to extend spaceflight capability in support of Apollo.
Apollo 10 was the fourth human spaceflight in the United States' Apollo program and the second to orbit the Moon. NASA, the mission's operator, described it as a "dress rehearsal" for the first Moon landing. It was designated an "F" mission, intended to test all spacecraft components and procedures short of actual descent and landing.
Apollo 12 was the sixth crewed flight in the United States Apollo program and the second to land on the Moon. It was launched on November 14, 1969, by NASA from the Kennedy Space Center, Florida. Commander Charles "Pete" Conrad and Lunar Module Pilot Alan L. Bean performed just over one day and seven hours of lunar surface activity while Command Module Pilot Richard F. Gordon remained in lunar orbit.
Apollo 14 was the eighth crewed mission in the United States Apollo program, the third to land on the Moon, and the first to land in the lunar highlands. It was the last of the "H missions", landings at specific sites of scientific interest on the Moon for two-day stays with two lunar extravehicular activities.
Apollo 15 was the ninth crewed mission in the United States' Apollo program and the fourth to land on the Moon. It was the first J mission, with a longer stay on the Moon and a greater focus on science than earlier landings. Apollo 15 saw the first use of the Lunar Roving Vehicle.
Apollo 16 was the tenth crewed mission in the United States Apollo space program, administered by NASA, and the fifth and penultimate to land on the Moon. It was the second of Apollo's "J missions", with an extended stay on the lunar surface, a focus on science, and the use of the Lunar Roving Vehicle (LRV). The landing and exploration were in the Descartes Highlands, a site chosen because some scientists expected it to be an area formed by volcanic action, though this proved not to be the case.
Apollo 17 was the eleventh and final mission of NASA's Apollo program, the sixth and most recent time humans have set foot on the Moon or traveled beyond low Earth orbit. Commander Gene Cernan and Lunar Module Pilot Harrison Schmitt walked on the Moon, while Command Module Pilot Ronald Evans orbited above. Schmitt was the only professional geologist to land on the Moon; he was selected in place of Joe Engle, as NASA had been under pressure to send a scientist to the Moon. The mission's heavy emphasis on science meant the inclusion of a number of new experiments, including a biological experiment containing five mice that was carried in the command module.
Surveyor 3 is the third lander of the American uncrewed Surveyor program sent to explore the surface of the Moon in 1967 and the second to successfully land. It was the first mission to carry a surface-soil sampling-scoop.
Moon landing conspiracy theories claim that some or all elements of the Apollo program and the associated Moon landings were hoaxes staged by NASA, possibly with the aid of other organizations. The most notable claim of these conspiracy theories is that the six crewed landings (1969–1972) were faked and that twelve Apollo astronauts did not actually land on the Moon. Various groups and individuals have made claims since the mid-1970s that NASA and others knowingly misled the public into believing the landings happened, by manufacturing, tampering with, or destroying evidence including photos, telemetry tapes, radio and TV transmissions, and Moon rock samples.
The Apollo Lunar Module, originally designated the Lunar Excursion Module (LEM), was the lunar lander spacecraft that was flown between lunar orbit and the Moon's surface during the United States' Apollo program. It was the first crewed spacecraft to operate exclusively in the airless vacuum of space, and remains the only crewed vehicle to land anywhere beyond Earth.
Mare Tranquillitatis is a lunar mare that sits within the Tranquillitatis basin on the Moon. It contains Tranquility Base, the first location on another celestial body to be visited by humans.
The Apollo Applications Program (AAP) was created as early as 1966 by NASA headquarters to develop science-based human spaceflight missions using hardware developed for the Apollo program. AAP was the ultimate development of a number of official and unofficial Apollo follow-on projects studied at various NASA labs. However, the AAP's ambitious initial plans became an early casualty when the Johnson Administration declined to support it adequately, partly in order to implement its Great Society set of domestic programs while remaining within a $100 billion budget. Thus, Fiscal Year 1967 ultimately allocated $80 million to the AAP, compared to NASA's preliminary estimates of $450 million necessary to fund a full-scale AAP program for that year, with over $1 billion being required for FY 1968. The AAP eventually led to Skylab, which absorbed much of what had been developed under Apollo Applications.
Tranquility Base is the site on the Moon where, in July 1969, humans landed and walked on a celestial body other than Earth for the first time. On July 20, 1969, Apollo 11 crewmembers Neil Armstrong and Buzz Aldrin landed their Apollo Lunar Module Eagle at approximately 20:17:40 UTC. Armstrong exited the spacecraft six hours and 39 minutes after touchdown, followed 19 minutes later by Aldrin. The astronauts spent two hours and 31 minutes examining and photographing the lunar surface, setting up several scientific experiment packages, and collecting 47.5 pounds (21.5 kg) of dirt and rock samples for return to Earth. They lifted off the surface on July 21 at 17:54 UTC.
A Moon landing or lunar landing is the arrival of a spacecraft on the surface of the Moon, including both crewed and robotic missions. The first human-made object to touch the Moon was Luna 2 in 1959.
The Lunar Reconnaissance Orbiter (LRO) is a NASA robotic spacecraft currently orbiting the Moon in an eccentric polar mapping orbit. Data collected by LRO have been described as essential for planning NASA's future human and robotic missions to the Moon. Its detailed mapping program is identifying safe landing sites, locating potential resources on the Moon, characterizing the radiation environment, and demonstrating new technologies.
The Lunar Flag Assembly (LFA) was a kit containing a flag of the United States designed to be erected on the Moon during the Apollo program. Six such flag assemblies were planted on the Moon. The nylon flags were hung on telescoping staffs and horizontal bars constructed of one-inch anodized aluminum tubes. The flags were carried on the outside of the Apollo Lunar Module (LM), most of them on the descent ladder inside a thermally insulated tubular case to protect them from exhaust gas temperatures calculated to reach 2,000 °F (1,090 °C). The assembly was designed and supervised by Jack Kinzler, head of technical services at the Manned Spacecraft Center (MSC) in Houston, Texas. Six of the flags were ordered from a government supply catalog and measured 3 by 5 feet ; the last one planted on the Moon was the slightly larger, 6-foot (1.8 m)-wide flag which had hung in the MSC Mission Operations Control Room for most of the Apollo program.
Lunar Module Eagle (LM-5) is the spacecraft that served as the crewed lunar lander of Apollo 11, which was the first mission to land humans on the Moon. It was named after the bald eagle, which was featured prominently on the mission insignia. It flew from Earth to lunar orbit on the command module Columbia, and then was flown to the Moon on July 20, 1969, by astronaut Neil Armstrong with navigational assistance from Buzz Aldrin. Eagle's landing created Tranquility Base, named by Armstrong and Aldrin and first announced upon the module's touchdown.