Complex sentence: Space debris, also known as orbital debris, space junk and space waste, is the collection of manmade defunct objects in orbit around Earth-old satellites, spent rocket stages, and fragments from disintegration, erosion and collisions.
Split into simpler sentences: Space debris, also known as orbital debris, space junk and space waste, is the collection of manmade defunct objects in orbit around Earth. This includes spent rocket stages, old satellites and fragments from disintegration, erosion and collisions.