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A chunk of the planet Mars - the largest ever found on Earth - recently sold for $4.3 million at Sotheby’s auction house in New York City. A meteorite hunter first discovered the massive rock in the Sahara desert in Niger in 2023.

So how did the meteorite end up at an auction in New York City and why would anyone pay millions of dollars for it? ÃÛÑ¿´«Ã½ reporter Damian Zane walks us through the rock’s mysterious journey — from Mars to New York, via Niger and Italy. He also shares the concerns that Niger’s government has about the sale and how Sotheby’s has responded.

We also hear from Julia Cartwright from the School of Physics and Astronomy at the University of Leicester. She explains how the market surrounding meteorites can lead to even more discoveries.

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Presenter: Hannah Gelbart
Producers: William Lee Adams and Rosabel Crean
Editor: Verity Wilde