Eagle: Houston, Tranquility Base

The Eagle has landed.

Houston: Roger, Tranquility, we copy you on the ground. You’ve got a bunch of guys about to turn blue. We’re breathing again. Thanks a lot.

Tranquility base: Thank you.

Houston: You’re looking good here.

Tranquility base: A very smooth touchdown. – July 20, 1969,  Mare Tranquillitatis,  The Moon