**SEO Headline:** Rare Martian Rock Expected to Fetch $4 Million at Auction

**Summary:** A unique piece of rock, believed to have originated from Mars, is set to go under the hammer at an upcoming auction. The meteorite, weighing 32 kilograms, is the largest piece of the Red Planet known to exist on Earth. It is expected to sell for a staggering $4 million, making it one of the most expensive space rocks ever auctioned. The rock is a fragment of the Tissint meteorite, which crashed in Morocco in 2011.

**Summary:** The meteorite’s journey from Mars to Earth is a remarkable story in itself. Scientists believe it was blasted off the Martian surface millions of years ago by a massive impact event. After traveling through space, it entered Earth’s atmosphere and disintegrated over the Moroccan desert. The Tissint meteorite is particularly valuable due to its fresh fall, which minimizes terrestrial contamination, offering unprecedented insights into Mars’ geological history.