Fifty years ago this week, NASA astronaut Alan B. Shepard Jr. made space history when he took a few golf swings on the Moon during the Apollo 14 mission, successfully hitting two golf balls across the lunar surface. Space enthusiasts have debated for decades just how far that second ball traveled. It seems we now have an answer, thanks to the efforts of imaging specialist Andy Saunders, who digitally enhanced archival images from that mission and used them to estimate the final resting spots of the golf balls.

Saunders, who has been working with the United States Golf Association (USGA) to commemorate Shepard's historical feat, announced his findings in a Twitter thread. Saunders concluded that the first golf ball Shepard hit traveled roughly 24 yards, while the second golf ball traveled 40 yards. //

Saunders, whose forthcoming book is entitled Apollo Remastered, estimates that a professional US Open golfer like Bryson DeChambeau could, in theory, hit a ball as far as 3.41 miles on the Moon, with a hang time of 1 minute 22 seconds—much farther (and longer) than Shepard's feat. As he told the BBC:

Unfortunately, even the impressive second shot could hardly be described as "miles and miles and miles," but of course this has only ever been regarded as a light-hearted exaggeration. The Moon is effectively one giant, unraked, rock-strewn bunker. The pressurized suits severely restricted movement, and due to their helmet's visors they struggled to even see their feet. I would challenge any club golfer to go to their local course and try to hit a six-iron, one-handed, with a one-quarter swing out of an unraked bunker. Then imagine being fully suited, helmeted, and wearing thick gloves. Remember also that there was little gravity to pull the clubhead down toward the ball. The fact that Shepard even made contact and got the ball airborne is extremely impressive.

And of course, the astronaut's legacy as the first human to play golf on the Moon remains secure.