Yes, you can directly buy Ethereum! Ethereum is a decentralized platform that runs smart contracts: applications that run exactly as programmed without any possibility of fraud or third party interference.
Ethereum is not just a platform but also a programming language (Turing complete) running on a blockchain, helping developers to build and publish distributed applications. The power of Ethereum lies in its community.
It is created by people all over the world who believe in the power of decentralized applications.
The native currency of the Ethereum network is called Ether. It is used to pay for transaction fees and computational services on the Ethereum network.
Ether is required by anyone wishing to build upon or use the Ethereum platform.
You can buy Ether from exchanges such as Coinbase, Kraken, Bitfinex, or ShapeShift. Once you have purchased Ether, it can be stored in a wallet on your computer or mobile phone.