Skip to main content

For questions related to planets, moons, stars and other celestial objects, and their motion on the sky.

Astronomy is often considered a subset of physics, although it may be a branch of science in its own right. The prefix "astro-" literally translates as "star", but astronomy ventures into the investigation of many other different celestial objects. Consider using more specialized tags with the tag, such as and if the question deals with one of these objects, or if your questions deals with activities in outer space. Other tags, such as and may also be useful.