The resulting action by the spacecraft was the shutdown of the descent engines, while still likely 40 meters above the surface.

The howl of air rushing past replaced the roar of the descent engine.

Looking over at the descent engine's fuel gauge, he saw that they had six seconds left.

Finally, the lunar regolith is very compact below its surface dust layer, making it impossible for the descent engine to blast out a "crater."

Some areas around descent engines were scoured clean.

The image below from the Phoenix lander shows ice that was exposed by the descent engines.

The descent engine would become the first throttleable rocket engine fired in space.

After two orbits, the first planned 39 second descent engine burn was started, but aborted by the onboard guidance computer after only 4 seconds.

The ground controllers moved to an alternate plan to fire the descent engine manually two more times.

At 104 hours, 30 minutes and 12 seconds GET the descent engine of Falcon ignited.