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.
Questions regarding Callisto, an icy moon of Jupiter.
Use for questions on the chemial transformations of carbon-containing compounds on a planet. Consider using "astrobiology".
Questions about flow regime in astrophysical gas characterized by chaotic properties.
Questions about how planets develop layers of different material, with denser cores and less dense crusts.
Questions regarding the hypothetical particle that is the quantum of gravity.
Questions about a hypothetical elementary particle postulated by the Peccei–Quinn theory in 1977 to resolve the strong CP problem in quantum chromodynamics (QCD).
Questions regarding the slow process of orbits getting smaller.
Used for questions regarding a blackbody law that relates effective temperature and radius with luminosity.
Questions regarding highly evolved, massive stars near the end of their life, with very high surface temperatures.
The Vera C. Rubin Observatory was formerly called the Large Synoptic Survey Telescope or LSST. The instrument itself is called the Simonyi Survey Telescope and "LSST" is now backronymed to be Legacy S…
for questions that involve an RC (Ritchey–Chrétien) type of telescope
Questions regarding the New General Catalogue.
Questions about the upcoming European Extremely Large Telescope.
Questions about gas-giant exoplanets with long orbital periods
Questions regarding non-baryonic matter, most notably, matter with negative mass or imaginary mass, such as tachyons.
Questions regarding a molecule or molecules with a positive net electrical change, such as the Solar Wind.
Tag used for topics related to drizzle-integration (a super-sampling algorithm for stacking images)