Bitcoin and blockchain infrastructure company Blockstream has launched a service to broadcast satellite information using Bitcoin Lightning Network payments. Among them, users only need a Lightning Network wallet, and with the help of the completely open source Blockstream Satellite API, they can run the Blockstream Satellite API independently or access the user-friendly version through the Blockstream official website, and users can send text-based messages, audio, video and other data into space, allowing users to send private data to each other.