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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.

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Questions regarding space exploration safety issues and procedures.
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Using radio wavelengths to communicate between multiple spacecraft or between a spacecraft and the Earth.
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Questions about orbits whose position in the sky remains the same for a stationary observer on the primary body.
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"change in velocity". The quantity has utility in rocketry as measure of the change in velocity that a reaction engine must produce to move into a given trajectory. The rocket equ…
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Questions regarding extra-vehicular activity, or EVA, during space exploration.
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Questions regarding the design or process of design of a spacecraft.
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Questions regarding missions or parts of missions which were not successful.
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Questions on taking images in space or of spacecraft.
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Questions regarding the artificial creation of Earth-like conditions on another celestial body.
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Questions which ask for an object in a photograph or other media to be identified and/or have its function described.
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Questions regarding effects on health by activities, prolonged stay, or exposure to environmental elements in space, celestial bodies, or space stations. Predominantly questions pertaining to health o…
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Questions regarding the study of life outside of Earth.
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make a controlled descent and touchdown onto another object, usually either to transfer objects, or perform scientific observations.
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Questions regarding the Curiosity rover launched by NASA for the purpose of Mars exploration.
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Questions addressing the energy requirement for space/orbit/interplanetary missions.
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For questions related to Elon Musk's Midnight Cherry Tesla Roadster (and its "pilot", an empty SpaceX suit named Starman), launched as the payload on the inaugural Falcon Heavy flight on February 6, 2…
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Questions about engines used in space that accelerate ions to create thrust.
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Questions of the science and space exploration related to Earth.
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Questions regarding computer programs used in space exploration.
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Relating to creating, testing, and refining technology for spacecraft.
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Questions regarding fields of magnetisms and their effects on Space Exploration, such as the Earth's magnetic field.
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Questions regarding atmospheric drag which includes the resistance offerd by a moving object in fluid
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Questions about the process and equipment used to join two spacecraft together.
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what remains of the former Soviet Union (Of which Russia was a province/state). The Russian/Soviet space program has been quite expansive and capable over many decades. Curr…
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Questions regarding the use of nuclear devices in space exploration, e.g. to power or propel spacecraft.
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a Mars lander that successfully touched down on Nov 26, 2018. Insight is going to study the interior (core) of Mars
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How passage of time impacts space exploration activities.
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propel payloads into space, usually a rocket-powered vehicle
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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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Questions regarding observation of spacecraft or phenomenon in space
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Questions about Indian Space Research Organization (ISRO), its missions, research projects, and other activities financed, organized, planned, managed, or otherwise arranged under this organization's …
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Missions expected to happen over the next decade, but that have not launched yet. In particular if such is only a concept at this time.
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Questions pertaining to the launch vehicle developed by Wernher von Braun's team under Arthur Rudolph's supervision at Marshall Space Flight Center for carrying astronauts to the Moon. Saturn V (or C-…
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Capsule for cargo and manned (eventually) payloads to orbit. Built by SpaceX, launched on a Falcon 9 rocket.
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Questions about the procedure of using a piece of equipment to find imperfections or problems.
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Relating to treaties, laws, ownership and disputes during the exploration of space.