Low pitch tone modulating
Airy low pitched UFO Thrusters Land, Muted
Airy low pitch UFO Thrusters Land, Muted and Hollow, Slow
Airy high pitch UFO Thrusters Land, Metallic
Low pitch descending electronic blast of space shuttle landing quickly
Golf ball landing in sand, heavy and close
Loud thud of human footstep jumping and landing on marble tile with gravel.
Footstep jumping and landing on wooden floor in the distance. Reverberation, and echo.
Footstep jumping and landing on marble tile, with gravel.