The most difficult Apollo 11 riddlesAstronautics quiz
How long did Neil Armstrong’s first moon walk last?
Each of the subsequent five Apollo program landings were allotted gradually longer periods for EVA activities – the crew of Apollo 17, by comparison, spent over 22 hours exploring the lunar surface.
Who was the first to visit the Sea of Tranquility?
Apollo 11 landing site was selected because it had been characterized as relatively flat and smooth by the automated Ranger 8 and Surveyor 5 landers.
How long did it take Apollo 11 flight to reach the Moon?
It took 1 minute of flight to reach Mach 1 and 12 minutes to enter Earth's orbit. After one and a half orbits, the third-stage engine pushed the spacecraft onto its three-day long travel to the Moon.