Luna, now known as Terra (LUNA), is a cryptocurrency that emerged from the Terra Classic blockchain, which is home to the algorithmic stablecoin TerraClassicUSD (UST). It is a proof-of-stake (PoS) blockchain where LUNA is used to secure the network and provide incentives for validators. After the crash of UST in May 2022, a new LUNA chain was launched, and the original chain and token were rebranded as Terra Classic (LUNC). Here is a more detailed breakdown: Terra (LUNA): New Chain: LUNA is the name of the new blockchain, which is a result of a fork after the collapse of UST in May 2022. Governance and Security: According to CoinGecko, LUNA is used to secure the network through staking and provides incentives for validators. Algorithmically Pegged Stablecoin: The new LUNA chain is designed to work with a new algorithmic stablecoin. Terra Classic (LUNC): Original Chain: According to CoinMarketCap, LUNC is the original Terra blockchain and its token. History: LUNC was the native token of the original Terra blockchain, launched in August 2018. UST Collapse: The collapse of TerraUSD (UST) in May 2022 significantly impacted LUNC. Rebranding: According to CoinMarketCap, the original chain and token were rebranded as Terra Classic as part of the recovery plan. Key Differences: Chain: LUNA is the new chain launched after the UST collapse, while LUNC is the original chain. Token: LUNA is the token of the new chain, while LUNC is the token of the original chain. UST: The new LUNA chain is designed with a new stablecoin, while LUNC is associated with the crashed UST.