Fifty years ago, Apollo 10 launched from Cape Kennedy on May 18, 1969. The Apollo 10 mission encompassed all aspects of an actual crewed lunar landing, except the landing. It was the first flight of a complete, crewed Apollo spacecraft to operate around the Moon.
The crew members were Commander Thomas Stafford, Command Module Pilot John Young and Lunar Module Pilot Eugene Cernan. Objectives included a scheduled eight-hour lunar orbit of the separated lunar module, or LM, and descent to about nine miles off the moon’s surface before ascending for rendezvous and docking with the command and service module, or CSM, in about a 70-mile circular lunar orbit. Pertinent data to be gathered in this landing rehearsal dealt with the lunar potential, or gravitational effect, to refine the Earth-based crewed spaceflight network tracking techniques, and to check out LM programmed trajectories and radar, and lunar flight control systems. Twelve television transmissions to Earth were planned. All mission objectives were achieved.
NASA’s Orion, Space Launch System (SLS), and Exploration Ground Systems (EGS) programs are continuing work on one of the most complex and sophisticated space systems ever built. Across America and in Europe, teams are developing and building the spacecraft, rocket, and infrastructure necessary to send humans to deep space destinations including the surface of the Moon and beyond.
Some major recent milestones include: Orion – Crew Module Uprighting System Test at Atlantic Beach, North Carolina; European Service Module Solar Array Expanded; Fit Check in the Super Guppy Aircraft; Ascent Abort-2 Launch Abort System Stacking and Integration at Kennedy Space Center in Cape Canaveral, Florida; Launch Abort System Attitude Control Motor Test in Elkton, Maryland. SLS – Liquid Oxygen Tank and Forward Skirt join at Michoud Assembly Facility in New Orleans, Liquid Hydrogen Tank Structural Test Article Unload from Pegasus Barge at Marshall Space Flight Center in Huntsville, Alabama; RS-25 Engine Testing at Stennis Space Center in Bay St. Louis, Mississippi; Core Stage-1 Engine Section and Boat Tail Completed and Mated at Michoud. EGS – at NASA’s Kennedy Space Center: Core Stage Intertank Umbilical Swing Testing; Launch Pad 39B Upgrades; Crawler Engine Maintenance.
The Blue Origin Blue Moon is a robotic space cargo carrier and lander for making cargo deliveries to the Moon. Designed and operated by Blue Origin for use on the Blue Moon mission aimed for 2024, Blue Moon derives from the vertical landing technology used in Blue Origin’s New Shepard sub-orbital rocket.
The lander is planned to be capable of delivering 4,500 kg (9,900 lb) to the surface of the Moon. The cargo vehicle could also be used to support NASA activities in cis-lunar space, or transport payloads of ice from Shackleton Crater to support space activities. The first projected mission for the craft would be a 2024 lunar south pole landing. It is proposed that a series of landings could be used to deliver the infrastructure for a Moon base.
Blue Origin began development work on the lander in 2016, publicly disclosed the project in 2017, and unveiled a mock up of the Blue Moon lander in May 2019.
The visualization uses a digital 3D model of the Moon built from Lunar Reconnaissance Orbiter global elevation maps and image mosaics. The lighting is derived from actual Sun angles during lunar days in 2018. The soundtrack is a performance of Clair de Lune by the National Symphony Orchestra Pops, led by conductor Emil de Cou.
“The Apollo program, also known as Project Apollo, was the third United States human spaceflight program carried out by the National Aeronautics and Space Administration (NASA), which succeeded in landing the first humans on the Moon from 1969 to 1972. First conceived during Dwight D. Eisenhower’s administration as a three-man spacecraft to follow the one-man Project Mercury which put the first Americans in space, Apollo was later dedicated to President John F. Kennedy’s national goal of “landing a man on the Moon and returning him safely to the Earth” by the end of the 1960s, which he proposed in an address to Congress on May 25, 1961. It was the third US human spaceflight program to fly, preceded by the two-man Project Gemini conceived in 1961 to extend spaceflight capability in support of Apollo.
Kennedy’s goal was accomplished on the Apollo 11 mission when astronauts Neil Armstrong and Buzz Aldrin landed their lunar module (LM) on July 20, 1969, and walked on the lunar surface, while Michael Collins remained in lunar orbit in the command and service module (CSM), and all three landed safely on Earth on July 24. Five subsequent Apollo missions also landed astronauts on the Moon, the last in December 1972. In these six spaceflights, twelve men walked on the Moon.
Apollo ran from 1961 to 1972, with the first manned flight in 1968. It achieved its goal of manned lunar landing, despite the major setback of a 1967 Apollo 1 cabin fire that killed the entire crew during a prelaunch test. After the first landing, sufficient flight hardware remained for nine follow-on landings with a plan for extended lunar geological and astrophysical exploration. Budget cuts forced the cancellation of three of these. Five of the remaining six missions achieved successful landings, but the Apollo 13 landing was prevented by an oxygen tank explosion in transit to the Moon, which destroyed the service module’s capability to provide electrical power, crippling the CSM’s propulsion and life support systems. The crew returned to Earth safely by using the lunar module as a “lifeboat” for these functions. Apollo used Saturn family rockets as launch vehicles, which were also used for an Apollo Applications Program, which consisted of Skylab, a space station that supported three manned missions in 1973–74, and the Apollo–Soyuz Test Project, a joint US-Soviet Union Earth-orbit mission in 1975.”
“Because of the Moon’s lack of water, atmosphere, and tectonic plates, there is little erosion, and craters are found that exceed two billion years in age. The age of large craters is determined by the number of smaller craters contained within it, older craters generally accumulating more small, contained craters.
The smallest craters found have been microscopic in size, found in rocks returned to Earth from the Moon. The largest crater called such is about 290 kilometres (181 mi) across in diameter, located near the lunar South Pole. However, it is believed that many of the lunar maria were formed by giant impacts, with the resulting depression filled by upwelling lava.”
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