The Lightning Network is a Layer-2 scaling solution designed to improve the scalability and speed of transactions in blockchain networks, primarily associated with Bitcoin. It enables fast and low-cost micro-transactions by creating off-chain payment channels between users. The Lightning Network reduces the congestion on the main blockchain by conducting most transactions off-chain, settling them in batches periodically. This allows for instant and inexpensive transactions while benefiting from the security and trust of the underlying blockchain. The Lightning Network aims to address the scalability challenges of blockchain networks and enhance their usability for everyday transactions.