WebIn astronomy, the new moon is the first lunar phase, when the Moon and Sun have the same ecliptic longitude. At this phase, the lunar disk is not visible to the naked eye, except when it is silhouetted against the Sun during a solar eclipse.. The original meaning of the term 'new moon', which is still sometimes used in calendrical, non-astronomical contexts, …

WebThe Bell Aerosystems Lunar Landing Research Vehicle (LLRV, nicknamed the Flying Bedstead) was a Project Apollo era program to build a simulator for the Moon landings.The LLRVs were used by the FRC, now known as the NASA Armstrong Flight Research Center, at Edwards Air Force Base, California, to study and analyze piloting techniques needed …

WebLunar phase, the appearance of the Moon as viewed from the Earth; Planetary phase, the appearance of the illuminated section of a planet; Phase separation, in physical chemistry, the separation of a liquid mixture into two immiscible liquids above and below a meniscus; Phase (syntax), in linguistics, a cyclic domain (proposed by Noam Chomsky)

WebThe 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 …

WebLa Lunar Gateway ou plus simplement Gateway (anciennement Lunar Orbital Platform-Gateway (« portail en orbite lunaire ») ou LOP-G, anciennement Deep Space Gateway ... Cette phase permettra également de réaliser des rendez-vous orbitaux loin de l'orbite terrestre basse. La NASA indique qu'elle compte faire appel aux entreprises privées et ...

WebEn astronomie, la phase de la Lune ou, moins communément, phase lunaire désigne une portion de Lune illuminée par le Soleil et vue à partir de la Terre.Cette dernière correspond à la partie de la Lune orientée à la fois vers la Terre et vers le Soleil. Puisque la Lune se déplace en orbite autour de la Terre, les phases lunaires changent d'une journée à …

WebLunar libration. The Moon keeps one hemisphere of itself facing the Earth, due to tidal locking.Therefore, the first view of the far side of the Moon was not possible until the Soviet probe Luna 3 reached the Moon on October 7, 1959, and further lunar exploration by the United States and the Soviet Union.This simple picture is only approximately true: over …

WebA solar eclipse occurs when the Moon passes between Earth and the Sun, thereby obscuring Earth's view of the Sun, totally or partially.Such an alignment coincides with a new moon, indicating the Moon is closest to the plane of the Earth's orbit. In a total eclipse, the disk of the Sun is fully obscured by the Moon.In partial and annular eclipses, only part of …

WebAn impact crater is a circular depression in the surface of a solid astronomical object formed by the hypervelocity impact of a smaller object. In contrast to volcanic craters, which result from explosion or internal collapse, impact craters typically have raised rims and floors that are lower in elevation than the surrounding terrain. Lunar impact craters range from …

WebClementine (officially called the Deep Space Program Science Experiment (DSPSE)) was a joint space project between the Ballistic Missile Defense Organization (previously the Strategic Defense Initiative Organization) and NASA, launched on January 25, 1994.Its objective was to test sensors and spacecraft components in long-term exposure to space …

WebSaturn V is a retired American super heavy-lift launch vehicle developed by NASA under the Apollo program for human exploration of the Moon.The rocket was human-rated, with three stages, and powered with liquid fuel.It was flown from 1967 to 1973. It was used for nine crewed flights to the Moon, and to launch Skylab, the first American space station.. As of …

WebVenus is one of the four terrestrial planets in the Solar System, meaning that it is a rocky body like Earth. It is similar to Earth in size and mass and is often described as Earth's "sister" or "twin". The surface pressure is 9.3 megapascals (93 bars), and the average surface temperature is 737 K (464 °C; 867 °F), above the critical points of both major …

WebThe RIM-161 Standard Missile 3 (SM-3) is a ship-based surface-to-air missile system used by the United States Navy to intercept short- and intermediate-range ballistic missiles as a part of Aegis Ballistic Missile Defense System. Although primarily designed as an anti-ballistic missile, the SM-3 has also been employed in an anti-satellite capacity against a …

WebYutu (Chinese: 玉兔; pinyin: Yùtù; lit. Jade Rabbit) was a robotic lunar rover that formed part of the Chinese Chang'e 3 mission to the Moon.It was launched at 17:30 UTC on 1 December 2013, and reached the Moon's surface on 14 December 2013. The mission marks the first soft landing on the Moon since 1976 and the first rover to operate there since the Soviet …