Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Tags

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.

× 77
For questions regarding the day-night cycle of a day on a world. Usually regarding the dark-light cycle.
× 77
For questions dealing with things that happen beneath the surface of the planet or other celestial body, except for things that happen in water (use [underwater] for that).
× 72
For questions about electromagnetic waves and particle radiation.
× 72
For questions about the force of magnetism and its applications.
× 72
For questions about instantaneously or near-instantaneously transporting an object from one location to another.
× 72
For questions about mathematics, including our own system of mathematics and alien versions of mathematics, focusing on their effects on societies and civilizations.
× 71
For questions involving the fundamental electromagnetic force. This includes electricity, magnetism, light, and other phenomena.
× 67
For questions relating to gas giants: large planets composed of gases (usually mostly hydrogen and helium).
× 66
should be used when planning on long term objectives. Depending on your needs, this can be used with economic, military, political goals, etc.
× 66
Questions involving radiant energy from the Sun.
× 65
For questions involving volcanoes, volcanic eruptions, and related phenomena, whether or Earth or elsewhere.
× 65
For questions related to vampires, imaginary undead beings generally assumed to subsist by means of fresh human blood.
× 65
For questions about the use of a mobile space station used to colonize the stars. A generation ship travels well below the speed of light and relies on natural processes of reproduction to support the…
× 65
For questions about byproduct of the combustion of materials.
× 64
For questions about the changes to a species of fauna or flora over multiple generations by intelligent beings, often for the purposes of harnessing the abilities of the species in question, usually t…
× 64
distribute time into certain periods adapted to the purposes of common life, as hours, days, weeks, months, years, etc.
× 63
For question about anything that can be used as a power source for a planet or civilization.
× 63
Questions dealing with creatures that have the ability to change their body form into someone or something else, voluntarily or involuntarily. Consider also the [chimera-folk] tag.
× 63
For questions that refer in general to the violent expenditure of energy in a specific area that is typically referred to as an explosion.
× 63
For questions that have to do with dinosaurs, excluding their living avian descendants.
× 63
Questions for incorporating fantastical elements into the modern world (20th century or later), with an emphasis on cities.
× 62
For questions about society's worst possible state, its components and consequences.
× 61
For questions concerning trans-humanism as a philosophical movement, and the drive towards developing and making widely available technologies to greatly enhance human intellectual, physical, and psyc…
× 61
Mythology should be used for questions involving stories or the origin of stories which will be important to some culture.
× 61
For questions about the social identification of individuals toward masculinity, femininity or else.
× 61
For questions about the diagnosis, treatment, and prevention of disease and injury.
× 61
For questions about utilizing asteroids, asteroids impacts and asteroids physical properties.
× 61
For questions about politics at a larger-than-nation-state scale. These may include questions about relations between superpowers, entities similar to the United Nations, the functioning of a single w…
× 60
should be used for questions specifically asking about the nuclear weapons. The question can be about the usage in war, its construction under certain circumstances or its effects in a given …
× 59
For questions about planetary climate change.
× 59
For questions about any non-flowing body of water in general. Rivers should use the [rivers] tag.
× 59
For questions about birds and birdlike creatures. Does not include machines designed for flying (consider [airships], [aircraft], [spaceships]). Consider also [flight].
× 57
For questions about the formation and existence of deserts, how civilizations survive in them, creatures of the desert, and related topics.
× 57
For questions about implemented technology that can be used for transportation. For questions about the act of transportation, consider using [transportation] instead.
× 57
For questions about blood, its use in the circulatory system, its effect and what would happen if it was changed.
× 56
For questions involving the economic exchange of goods or services.