Ethereum is a decentralized blockchain platform that enables the creation of applications without intermediaries. Using smart contracts, Ethereum facilitates automatic, secure, and transparent transactions. The platform supports various innovations such as decentralized finance (DeFi), non-fungible tokens (NFT), and Web3 applications. Ether is the cryptocurrency used to pay network fees and run contracts. Since switching to a proof-of-stake mechanism, Ethereum has become more energy-efficient and scalable. Moving forward, Ethereum continues to evolve to improve speed, security, and global adoption. Its ecosystem involves developers, investors, and active communities building blockchain-based digital solutions across various industries that grow and innovate each year.