An unusual auction just saw an unknown buyer pay a staggering $1.8 million for a bag of moon dust with quite a story behind it. This bag was what Neil Armstrong brought with him on Apollo 11 in 1969 to collect moon dust samples in mankind’s first ever moon landing.

The item has moved around between owners since that incredible journey that forever changed mankind. A Chicago woman bought the bag for less than $1,000 in 2015 from a Marshals Service auction, but she immediately suspected that it might be a bit more valuable than that, so she sent it to NASA to confirm the item’s authenticity.

NASA, claiming the object had been stolen, didn’t want to return it to the woman, so they went to court after the agency was able to confirm its authenticity. The judge gave the bag back to the woman, even despite its stolen status, and now someone else decided to snap up the item for much more than it originally went for.