Saturn 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 2022, the …

Venus 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 constituents and making the surface ...

The 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 satellite at the lower …

Yutu (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 Lunokhod 2 …

In most locations, the largest constituent is the principal lunar semi-diurnal, also known as the M2 tidal constituent or M 2 tidal constituent.Its period is about 12 hours and 25.2 minutes, exactly half a tidal lunar day, which is the average time separating one lunar zenith from the next, and thus is the time required for the Earth to rotate once relative to the Moon.

Tidal locking between a pair of co-orbiting astronomical bodies occurs when one of the objects reaches a state where there is no longer any net change in its rotation rate over the course of a complete orbit. In the case where a tidally locked body possesses synchronous rotation, the object takes just as long to rotate around its own axis as it does to revolve around its partner.

A lunar day is the period of time for Earth's Moon to complete one rotation on its axis with respect to the Sun.Due to tidal locking, it is the time the Moon takes to complete one orbit around Earth (Earth rise to Earth set) plus about 2.2 more Earth days to return to the same Moon phase (due to the Moon's orbit around the Sun). The lunar day is roughly 29 1 / 2 Earth days, the length of a ...

Mach number (M or Ma) (/ m ɑː k /; Czech: ) is a dimensionless quantity in fluid dynamics representing the ratio of flow velocity past a boundary to the local speed of sound. It is named after the Moravian physicist and philosopher Ernst Mach. =, where: M is the local Mach number, u is the local flow velocity with respect to the boundaries (either internal, such as an object …

The Hindu calendar is lunisolar but most festival dates are specified using the lunar portion of the calendar. A lunar day is uniquely identified by three calendar elements: māsa (lunar month), pakṣa (lunar fortnight) and tithi (lunar day). Furthermore, when specifying the masa, one of two traditions are applicable, viz. amānta / pūrṇimānta. Iff a festival falls in the waning phase of ...

Luna-Glob (Russian: Луна-Глоб, meaning Lunar sphere) is a Moon exploration programme by Roscosmos meant to progress toward the creation of a fully robotic lunar base.When completed, the programme will continue with crewed lunar missions, starting with a crewed orbiter spacecraft called Orel.. The programme is based on plans dating back to 1997.

Solid core nuclear reactors have been fueled by compounds of uranium that exist in solid phase under the conditions encountered and undergo nuclear fission to release energy. Flight reactors must be lightweight and capable of tolerating extremely high temperatures, as the only coolant available is the working fluid/propellant. A nuclear solid core engine is the simplest design to …

The overview effect is a cognitive shift reported by some astronauts while viewing the Earth from space. Researchers have characterized the effect as "a state of awe with self-transcendent qualities, precipitated by a particularly striking visual stimulus". The most prominent common aspects of personally experiencing the Earth from space are appreciation and perception of …

An uncrewed Block 1B is planned to launch the Lunar Surface Asset in 2028, the first lunar outpost of the Artemis program. [citation needed] Budget. For fiscal years 2011 through 2022, the SLS program had expended funding totaling $23.809 billion in nominal dollars. This is equivalent to $27.491 billion in 2022 dollars using the NASA New Start ...

Three-phase electric power (abbreviated 3φ) is a common type of alternating current used in electricity generation, transmission, and distribution. It is a type of polyphase system employing three wires (or four including an optional neutral return wire) and is the most common method used by electrical grids worldwide to transfer power.. Three-phase electrical power was …