Name the American astronaut who landed on the moon for the first time.
Neil Armstrong and Buzz Aldrin landed on the moon in 1969. There, Neil and Buzz decided to calculate the time taken by things to reach the ground. So Neil dropped a ball from height 7.35 m from the surface of the moon and Buzz was supposed to record the time taken. How much time did it take for the ball to touch the surface?
Spaceflight that landed Neil Armstrong to the moon is ____________.