PETE CONRAD: There it is! Son-of-a-gun! Right down the middle of the road! ALAN BEAN: Outstanding, Pete. CONRAD: I can’t believe it! Amazing! Fantastic!

Pete Conrad and Alan Bean had reason to be excited. 50 years ago today, the Apollo 12 astronauts were moments away from making the second manned lunar landing. And Conrad had just spotted their target: a small crater holding Surveyor 3, a robotic lander that had touched down more than two years earlier.

Future Apollo missions would be focused more on science, requiring pinpoint landings at interesting sites. So Apollo 12 was testing the ability to hit a precise target. And Conrad, flying the Lunar Module Intrepid, did just that.

BEAN: He’s got it made. Come on in there. 24 feet. Contact light! MISSION CONTROL: Roger, copy contact. BEAN: Good landing, Pete! Outstanding, man! Beautiful!

A few hours later, Conrad stepped on the lunar surface for the first of two moonwalks.

CONRAD: Hey, that’s neat.

The astronauts set up experiments and gathered samples of rock and dirt.

CONRAD: We’re just going to more to the area where we can stop and case the joint. Al, grab a shot of that beaded glass there and we’ll bag it. BEAN: Okay. CONRAD: That’s better than the Hope Diamond.

Then they walked down to the Surveyor, just 500 feet away.

BEAN: Beautiful. Beautiful sight.

Conrad and Bean clipped off some parts for engineers on Earth to study. Hours later, they blasted off to rejoin crewmate Richard Gordon for the trip home — ending a precise mission to the Moon.

Script by Damond Benningfield