> For the complete documentation index, see [llms.txt](https://whitepaper.apeironnft.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://whitepaper.apeironnft.com/apeironnft/key-game-features/gamenomics/marketplace-and-nfts/planet-nfts/mini-blackhole-nfts.md).

# Mini-Blackhole NFTs

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Mini-Black Holes (mBH) are an NFT token used to pay for Celestial Conjunction. The number of mBH needed for a given Celestial Conjunction depends upon the types of Planets used and upon the Conjunction Count of each Planet. mBH can be purchased on the market or gained as a reward for active participation in our community.