What would happen if you hit a baseball on Mars? Would a home run fly farther on the Moon? Could you even play baseball on Jupiter or Saturn?
Using real physics and NASA data, I calculated how far a baseball would travel on every planet in our solar system (as well as Earth’s Moon) to find out how different gravity and atmospheres would affect the ultimate home run.
As the author of Martian Baseball League, a middle-grade novel that imagines baseball on Mars, this question has fascinated me for years. But why stop at Mars? Let’s take baseball across the entire solar system.
November 13, 2025
The idea of colonizing Mars has captured the world’s imagination, with organizations like SpaceX planning crewed missions as early as the 2030s. And while the challenges of living on another planet are enormous, it’s fun to imagine what everyday life might look like — including playing sports.
As a lifelong baseball fan, one question grabbed me:
How far would a home run travel on the Red Planet?
The answer: a really, really long way.
Why Baseball Would Be Wildly Different on Mars
Two big physical differences would completely change baseball on Mars:
1. Mars has only 38% of Earth’s gravity
Lower gravity means:
Baseballs go much farther
Balls stay in the air longer
Hitters can swing faster
2. Mars’ atmosphere is 100× thinner
Thin air means:
Almost no air resistance; Hits fly like they’re in a vacuum
Curveballs hardly curve
Fastballs don’t slow down on the way to the plate
The best Earth comparison is Coors Field in Denver, where the air is “only” 17% thinner — and even that dramatically increases home runs and reduces the effectiveness of curve balls. Mars would be next-level!
Using Aaron Judge’s 469-Foot Bomb as a Test Case