![Hal Walker: The Man Who Shot The Moon - podcast episode cover](https://media.npr.org/assets/img/2022/03/24/hal-walker-11_sq-5b3bf8439eb256aa29db0c90b76ac06a9527c5ed.jpg?s=3000&c=66&f=jpg)
Episode description
In addition to flying, landing, and returning from the moon in 1969 — NASA's Apollo 11 crew helped with a series of scientific experiments. One of them was to leave a special instrument with lots of little reflectors on the surface of the moon. The goal of that experiment was to beam a laser at the moon. Today on the show, Scientist-In-Residence Regina G. Barber talks to host Aaron Scott about the lunar laser ranging experiment — and how shooting that laser helped us better understand one of Einstein's theories.Follow Aaron on Twitter @AaronScottNPR and Regina @ScienceRegina. Reach the show by beaming an email to ShortWave@NPR.org.
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