When humanity developed a new type of space engine, traveling beyond the solar system became commonplace. Many expeditions brought back astonishing discoveries, among which was this collection of 70 unique crystals. These crystals were brought to Earth and presented as NFTs on the Alephium blockchain. These NFTs can be bought, exchanged, and offers can be made, perhaps you'll receive a discount on some of them. The collection is unique, as such crystals are no longer found in the Solar System, and it is unknown when they will appear again...