Technology content trusted in North America and globally since 1999
8,492 Reviews & Articles | 65,491 News Posts

Apollo 11's glass Moon prisms is science we still use today

Apollo 11 astronauts didn't just cruise around on the Moon, they laid the groundwork for science we still find utility in today

By Jak Connor from Jul 31, 2019 @ 5:00 CDT

NASA's Apollo 11 mission was not only a pivotal point in human history, but also a gift that keeps on giving as the work the astronauts did aboard the massive space rock still is helping us out today.


In 1969, Neil Armstrong and Buzz Aldrin blasted off to the surface of the Moon, after a successful landing and an adventure out onto the wasteland-like surface, science needed to be conducted. One of the experiements the two astronauts did was the installation of glass prism arrays on the Moon's surface. These prisms were placed there so scientists back on Earth could fire lasers at them and measure the distance between Earth and the Moon.

While those prisms were placed there back in 1969, they are still being used today and have delivered an extraordinary amount of valuable information. Observatories on Earth have fired lasers at these prisms and waited for the light to return back to Earth to measure the distance between the two floating objects. It was discovered that the Moon is actually moving 1.5 inches away from Earth each year, and that at the moment the Moon is currently 384,400km away from Earth.

Buy at Amazon

Borderlands 3 Super Deluxe Edition - PlayStation 4

Today Yesterday 7 days ago 30 days ago
$96.97 $99.99 $99.99
* Prices last scanned on 11/16/2019 at 6:10 am CDT - prices may not be accurate, please click for very latest pricing

Related Tags