If it weren’t for a small felt-tipped pen and the quick thinking of the astronauts, the outcome of the Apollo 11 mission could have ended in disaster.. On July 20, 1969, the first men to land on ...

Last friday, at the National Museum of the USAF, the Apollo 11 astronauts participated in a panel discussion about their historic Moon landing. They spent a good portion of the discussion, however ...

Listen to our podcast story about the Apollo 11 mission. There's so much more, too. Read about how Armstrong avoided crash landing on the moon. Brush up on the Apollo 11 crew.

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Currie was a principal investigator on the team that created the retroreflectors deployed during the Apollo 11 mission. Currie said NASA's objective was for the experiment to only last for five years.

The three-person Apollo 11 crew was made up of Navy aviators and an Air Force pilot. They became the first mission to land on the Moon. Fifty-five years ago today, humans landed on the Moon.

Apollo 11's Saturn V rocket needed a lot of power to launch into orbit and reach the Moon. Here's what engines the spacecraft used to accomplish its mission.

Related: NASA's Historic Apollo 11 Moon Landing in Pictures Sprayground's latest NASA-inspired backpack with embossed astronaut footprint on lunar surface. Space helmet not included.