Stellar network is an open-source network for currencies and payments, launched in 2015. It use a token called XLM or Lumens.
The software runs across a decentralized, open network. Just like Bitcoin, Stellar relies on blockchain to keep the network synced. But you will soon find that Stellar is much faster and more energy-efficient than other blockchain-based systems.
If you are interested in Stellar then there is an opportunity to get some 10$ free by watching a few minutes of video films. What is required is an account with Coinbase, if you do not have one you can easily get one here: https://www.coinbase.com/join/pekkar_7
Then follow the links to https://coinbase.com/earn/xlm/invite/c6t4kzb7
You can always read more at: https://www.stellar.org/