Space Exploration and Spacetime in Universe

In physical terms space is a framework of distance and direction with time mostly refered as spacetime in known universe. Astronomical bodies and their properties are part of space.

Galaxies, stars, planetary systems, quasars, black holes are some of the known objects of space in the universe. 

Humans are only the known intelligent species in the known universe involved in exploring space analysing behavior of space objects and spacetime.