Posts Tagged ‘interplanetary space’
We humans love to categorize things. The physical space between objects in the universe is no exception! Let’s start with the smallest of spacely categories – interplanetary space. Interplanetary space is the area between planets in the solar system. Moving up on the scale is interstellar space or the area between stars within the same galaxy. Finally, the largest physical space is the area between galaxies themselves which is called intergalactic space!