There are currently no tag wikis for meteor and asteroids, but several questions have those tags.
Additionally, comets, meteorites, and meteoroids are related phenomena with their own definitions, but they aren't used as tags at all.
These are notorious for misuse - few people know and remember the definitions, so they are often used interchangeably when tagging.
Here are the definitions from NASA:
Asteroid: A relatively small, inactive, rocky body orbiting the Sun.
Comet: A relatively small, at times active, object whose ices can vaporize in sunlight forming an atmosphere (coma) of dust and gas and, sometimes, a tail of dust and/or gas.
Meteoroid: A small particle from a comet or asteroid orbiting the Sun.
Meteor: The light phenomena which results when a meteoroid enters the Earth's atmosphere and vaporizes; a shooting star.
Meteorite: A meteoroid that survives its passage through the Earth's atmosphere and lands upon the Earth's surface.
1. Which of the three untagged phenomena (comets, meteorites, and meteoroids) should get tags, if any? Do we want to be specific here or is this unnecessary detail?
2. Would it be better to define these phenomena on the tag descriptions so people tag correctly, or is this too picky and a space-rocks tag would suffice that encompasses them all?
3. Should we standardize pluralization? Meteor is singular but asteroid"s" is not.