A "Space" refers to a continuous area or expanse that is free, available, or unoccupied. In mathematics, it can describe a set of points that follow specific rules, such as in geometry or topology. In everyday life, spaces can be physical, like a room or a park, or abstract, like the digital space of the internet. In the context of outer space, it refers to the vast, seemingly infinite expanse beyond Earth's atmosphere. This area contains celestial bodies such as planets, stars, and galaxies. Understanding space is crucial for fields like astronomy and astrophysics, which study the universe and its components.