In orbital mechanics, a circumlunar trajectory, trans-lunar trajectory or lunar free return is a type of free return trajectory which takes a spacecraft...

the flight time for a cislunar free-return trajectory is longer than for the circumlunar free-return trajectory with the same periselenum radius. Flight...

systems on the lunar module (LM), instead looped around the Moon in a circumlunar trajectory and returned safely to Earth on April 17. The mission was commanded...

in Earth orbit which then sends the spacecraft on a free return circumlunar trajectory that circles around the Moon once. While the price was originally...

Three men have been to the Moon twice, one orbited once and took a circumlunar trajectory the second time, while the other two landed once apiece. Apart from...

became the first spaceship to travel to and circle the Moon in a circumlunar trajectory, the first Moon mission to include animals, and the first to return...

Maezawa. It would have seen Maezawa and eight civilian artists fly a circumlunar trajectory around the Moon aboard a SpaceX Starship spacecraft. Maezawa said...

without entering lunar orbit, following the so-called free return trajectory. Such circumlunar loop missions are simpler than lunar orbit missions because rockets...

the addition of various missions, including crewed low Earth orbit, circumlunar and lunar landing missions. Gemini was the second crewed spaceflight...

Tourist flights to the Moon would be of three types: flyby in a circumlunar trajectory, lunar orbit, and lunar landing. However, the only tourist flights...

DearMoon project, in which he and several other people will fly on a circumlunar trajectory onboard SpaceX's Starship later in the decade, though it was later...

proposals considered using Centaur rockets to boost the Gemini on a circumlunar trajectory (similar to the Soviet's Zond program), lunar orbit missions using...

spacecraft was intended as a precursor to remote-controlled robotic circumlunar loop flights, using a stripped-down variant of Soyuz spacecraft, consisting...

which is used to send a spacecraft to the Moon. Typical lunar transfer trajectories approximate Hohmann transfers, although low-energy transfers have also...

7K and Soyuz-P spacecraft into higher orbits; the Soyuz-A onto a circumlunar trajectory for human Lunar exploration, and the Soyuz-P into a higher orbit...

in launch failures. It was intended to fly around the moon on a circumlunar trajectory in order to image the surface of the Moon, including the far side...

Orbit Record". NASA. 2019-06-13. Retrieved 2019-06-22. Lunar orbit Circumlunar trajectory List of minor planets and comets visited by spacecraft List of landings...

Multi-Purpose Crew Vehicle. The initial plans for EM-1 called for a circumlunar trajectory during a seven-day mission. In January 2013, it was announced that...

last in the series of circumlunar spacecraft, a member of the Soviet Zond program, designed to rehearse a piloted circumlunar flight, an uncrewed version...

in launch failures. It was intended to fly around the Moon on a circumlunar trajectory in order to image the surface of the Moon, including the far side...

entry trajectories that follow a non-ballistic trajectory by employing aerodynamic lift in the high upper atmosphere. It includes trajectories such as...

Moon-flyby spacecraft, was one of the first Soviet experiments towards crewed circumlunar spaceflight. It was launched to test the spaceworthiness of the new capsule...

and projects exist. Sergei Korolev initially promoted the Soyuz A-B-V circumlunar complex (7K-9K-11K) concept (also known as L1) in which a two-man craft...

Trans-Lunar Injection. The C-2 design concept was for a proposed crewed circumlunar flight and the Earth orbit rendezvous (EOR) missions. It was initially...

Soyuz 7K-P spacecraft into a higher orbit; the Soyuz 7K onto a circumlunar trajectory for human Lunar exploration, and the Soyuz 7K-P into a higher orbit...

systems on the lunar module (LM), instead looped around the Moon in a circumlunar trajectory and returned safely to Earth on April 17. Engineering disasters...

3MV project. It was unrelated to Zond spacecraft designed for crewed circumlunar missions (Soyuz 7K-L1). It is believed that Zond 3 was initially designed...

pursue its own crewed lunar exploration program, including lunar orbit, circumlunar, and lunar landing missions. This proposal was not adopted. However,...

robotic spacecraft to complete a circumlunar free return trajectory, still not a lunar orbit, but a figure-8 trajectory which swung around the far side...

encounters two or more bodies regularly by employing a free-return trajectory, this trajectory was analysed by Arthur Schwaniger in 1963 with a symmetrical...