Draft story
Apollo 15 lunar rover
The electric cart that took astronauts and their tools farther across the Moon.

I went to the Moon with Apollo 15 in 1971. I was an electric cart with room for two astronauts and their tools. Once the crew unloaded me, they could drive beyond the landing site.
At stops along the way, the astronauts took photographs and collected rocks. I carried their samples back. Recording where those rocks came from helped scientists compare different parts of the landscape and work out how they formed.
My odometer counted almost 28 kilometers before the crew parked me. I stayed on the Moon when the astronauts left.
What I did
Carried astronauts, tools and samples across the lunar surface.
What we learned
By reaching several sites, the astronauts could collect different rocks and study how the landscape formed.
A detail to remember
My odometer recorded almost 28 kilometers of driving.