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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.
Solar System space probes operational as of November 2024. This is a list of active space probes which have escaped Earth orbit. It includes lunar space probes, but does not include space probes orbiting at the Sun–Earth Lagrangian points (for these, see List of objects at Lagrangian points). A craft is deemed "active" if it is still able to ...
Main focus would be to map the gravitational fields in deep space, including the Outer Solar System (up to 50 AU) proposed [15] [16] OSS ESA/NASA: flyby proposed [17] Triton Hopper: NASA: rocket-powered "hopper" An NIAC study of a mission to Neptune with the goal of landing, and flying from site to site, on Neptune's moon Triton. proposed [18 ...
Histories of the Space Tracking and Data Acquisition Network (STADAN), the Manned Space Flight Network (MSFN), and the NASA Communications Network (NASCOM). NASA SP-2007-4233 - Sunny Tsiao (2007). "Read You Loud and Clear!" The Story of NASA's Spaceflight Tracking and Data Network. Network stations list; STADAN Station in Shoe Cove, Newfoundland
A launch status check, also known as a "go/no go poll" and several other terms, occurs at the beginning of an American spaceflight mission in which flight controllers monitoring various systems are queried for operation and readiness status before a launch can proceed.
The bright S/2002 N5 moon is 14 miles (23 kilometers) in diameter and takes nearly nine years to complete an orbit of Neptune, while faint S/2021 N1 is about 8.7 miles (14 kilometers) across and ...
Would've focused on Neptune and its largest moon, Triton, addressing questions raised by Voyager 2's 1989 flyby [134] and would've provided insights into the formation and evolution of ice giants. [135] 2 Neptune Odyssey: Neptune Odyssey: 2033 [136] Space Launch System proposed, Falcon Heavy as the alternative [136] NASA: Orbiter In progress
Tracking vehicles in low Earth orbits (LEO) is quite different from tracking deep space missions. Deep space missions are visible for long periods of time from a large portion of the Earth's surface, and so require few stations (the DSN uses only three, as of February 20, 2010). These few stations, however, require the use of huge antennas and ...