Transcription: Coming home from the moon, you had to come in and hit the atmosphere in a re-entry quarter that was only two degrees wide. A pie-shaped wedge. Not any less than five and a half degrees, not any greater than seven and a half degrees. You had to come down that two degree wedge. If you came in too shallow, you'd skip out, like skipping a stone on water. If you came in too steep, well that sudden deceleration would make you a fiery meteor over the sky for a few brief seconds. We were coming in too shallow.