The catch is to find the right chunk of rock.
Size matters, but the value of a meteorite is also based on its rarity, where it came from and what it's made of.
"The most common is called a stony-iron, and it's made up of minerals that are pretty common on Earth, so a small piece might be worth 20 bucks," said Chris Palma, a professor in the Department of Astronomy and Astrophysics at Penn State University, in an interview with RIA Novosti.
"But the composition can tell you something about where it came from, so if it has a composition that suggests it likely came from Mars the value goes through the roof," he added.