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Orbits around the L 1 point are used by spacecraft that want a constant view of the Sun, such as the Solar and Heliospheric Observatory. Orbits around L 2 are used by missions that always want both Earth and the Sun behind them. This enables a single shield to block radiation from both Earth and the Sun, allowing passive cooling of sensitive ...
The following list includes the free-flight tests, durations listed count only the orbiter free-flight time. The list does not include total time aloft along with airborne time atop of the SCA. Order
First lunar sample return mission by China. Ascent stage deorbited on 7 December 2020. Capsule successfully returned sample via service module on 16 December 2020. The orbiter will make lunar flyby in extended mission on 9 September 2021 in Distant retrograde orbit. [7] CAPSTONE: USA 14 November 2022 Active and on a Near-rectilinear halo orbit ...
This is a list of conventional orbital launch systems. This is composed of launch vehicles, and other conventional systems, used to place satellites into orbit.
A space station (or orbital station) is a spacecraft which remains in orbit and hosts humans for extended periods of time. It therefore is an artificial satellite featuring habitation facilities.
Pages in category "Orbits" The following 121 pages are in this category, out of 121 total. This list may not reflect recent changes. ...
An animation showing a low eccentricity orbit (near-circle, in red), and a high eccentricity orbit (ellipse, in purple). In celestial mechanics, an orbit (also known as orbital revolution) is the curved trajectory of an object [1] such as the trajectory of a planet around a star, or of a natural satellite around a planet, or of an artificial satellite around an object or position in space such ...
This is a list of space probes that have left Earth orbit (or were launched with that intention but failed), organized by their planned destination. It includes planetary probes, solar probes, and probes to asteroids and comets, but excludes lunar missions, which are listed separately at List of lunar probes and List of Apollo missions.