# Celestia

Celestia is a modular [data availability network](https://blog.celestia.org/celestia-a-scalable-general-purpose-data-availability-layer-for-decentralized-apps-and-trust-minimized-sidechains) that securely scales with the number of users, making it easy for anyone to launch their own blockchain.

Celestia enables the next generation of scalable blockchain architectures - [modular blockchains](https://celestia.org/learn). Celestia scales by [decoupling execution from consensus](https://arxiv.org/abs/1905.09274) and introducing a new primitive, [data availability sampling](https://arxiv.org/abs/1809.09044).