"As for keeping it, don’t get your hopes up," Aerospace says. "There is a United Nations treaty that governs found debris—the 1967
Outer Space Treaty. It states that countries keep ownership of objects they launch into space, even after those objects reenter and return to Earth. The country that launched the object in this case is Russia, which could request the return of any parts that survived reentry. "It is also worth noting that the treaty says that the launching country is also internationally liable for damages."