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A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.

A tumbling micro-asteroid classified as a bright near-Earth object of the Apollo group, approximately 10 meters (30 feet) in diameter. (from Wikipedia)
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(486958) 2014 MU69 is a trans-Neptunian object (TNO) in the Kuiper belt, the target of the New Horizons spacecraft after its flyby of Pluto. It was originally nicknamed Ultima Thule and now has been o…
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For creating spatial graphical models of objects and spacecraft, usually with software
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A material used in high heat flux locations (e.g., atmospheric entry, rocket nozzles) that ablates and carries away the heat/energy of the flow protecting the structures behind it.
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Questions regarding the process of bringing a mission to an early stop, often due to an emergency or unforeseen circumstances.
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Questions regarding acceleration - the rate and/or direction by which an object's speed or velocity vector changes with respect to time.
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The closeness of a calculation/measurement to its true value/target.
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Use when referring to infrastructure for a space economy that uses at least one active component to support at least one geostationary component. Examples include, but are not limited to, Space Founta…
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Questions on spacecraft propulsion techniques that are either theoretical or not yet at a high technology readiness level.
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Questions regarding aerobot which are aerial robots used in the context of unmanned space probe
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Questions related to causing a spacecraft to slow down by flying through a planet's atmosphere to produce aerodynamic drag.
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the effect on a spacecraft of moving through atmosphere, how its density, pressure, temperature, flow velocity, and viscosity affect a craft, and how lift and drag can be used to modify that.
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Aerojet Rocketdyne is an American manufacturer of rocket, hypersonic, and electric propulsive systems for space, defense, civil and commercial applications. Headquartered in Sacramento, California, th…
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Aerospikes are rocket engines that don't make use of common bell-nozzles. They can maintain a high efficiency at any altitude, as their expansion ratio is constant over altitudes. The design, however,…
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Questions about the use of inflatable balloons to cushion landing of probes/exploration vehicles on planetary bodies.
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The release of a rocket or spacecraft from another vessel or platform within the atmosphere, after which it propels itself into space.
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Questions about airlocks, used to exit a space craft, without venting all the interior atmosphere.
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A Japanese space probe intended to explore Venus for the purpose of examining its meteorology.
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The Emirates Mars Mission or EMM includes the spacecraft Al-Amal or “Hope” launched 19 July 2020 (2020-047A, 45918) targeting a Mars orbit where it will primarily study the Martian atmosphere. It was …
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The Almaz program was a highly secretive Soviet military space station program, begun in the early 1960s.
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A triple-star system and the closest stellar neighbor to our solar system
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Questions regarding the distance of an object above a surface.
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Questions about the authorized non-commercial use of the radio spectrum specifically as it relates to spaceflight and space exploration
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Questions regarding model and/or high-powered rocketry.
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