In the history of space exploration, only twelve people have walked on the surface of the moon. On Thursday, two of those astronauts were at the Cradle of Aviation Museum in Garden City.

The event was held to mark the 50th anniversary of the Apollo 11 mission, which happened on July 20, 1969. It was the day Neil Armstrong and Buzz Aldrin became the first humans to set foot on the lunar surface.

Five Apollo astronauts and two of the program's flight directors, as well as some of the engineers who helped make the moon landing possible, took part in the day’s events.

 The lunar module, which the astronauts used to get from their spaceship to the moon, was designed and assembled on Long Island at the Grumman facility in Bethpage.

Harrison Schmitt, the last person to walk on the moon in 1972, told News 12 that the surface was like “walking on a giant trampoline.”

“Only one-sixth of Earth's gravity. If you've ever been on a trampoline, you would get some feeling for that,” he says.

The museum’s gathering was the first in a series of events marking 50 years since the first moon landing.