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 a manmade object sent to explore space and celestial objects.
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Questions regarding telescopes in orbit around Earth, such as the Hubble Space Telescope.
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Questions regarding the 4-dimensional background structure of our universe.
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Questions regarding Albert Einstein's theory that posits, among other things, the equivalence of mass and energy.
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Questions about the observed frequency range of the electromagnetic radiation of a celestrial object.
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Questions regarding an object's movement, or its distance traveled relative to the time taken.
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Questions regarding large spheres of gas undergoing fusion.
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Questions related to the physical processes involved in or to the observations of the process of forming a star.
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Questions regarding casually watching the stars.
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Questions regarding one or more stars and the objects they locally interact with, including each other.
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Stellar dynamics describe the branch of astronomy that studies the regularities in the motions of stars in gravitational fields of a stellar systems, as well as the evolution of stellar systems.
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Questions related to the evolution of stars.
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Questions involving a star along with all celestial material in its sphere of influence.
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Questions regarding the closest star to Earth, at the centre of the Solar System.
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Questions regarding the most massive examples of black holes that typically reside at the centers of galaxies.
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Questions regarding stars which increase suddenly in energy output due to an explosion which ejected much of its mass.
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Questions about the outermost layer of a body.
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Questions related to the physical instruments for astronomical observations.
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a measurement of the average kinetic energy of the molecules in an object or system. In simpler words: it's the degree or intensity of heat present in a substance or object that is comm…
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Questions regarding specific terms, names, or naming conventions.
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a planet that has a compact rocky surface like the Earth's; the four innermost planets in the solar system.