Bitcoin Q&A: How does the Blockstream satellite work?

How does the Blockstream satellite project work? What do you need in order to participate? What is it useful for? Let me bring your science fiction imagination back down to earth... This question is from the January monthly subscriber session, which took place on January 26th 2019. If you want early-access to talks and a chance to participate in the monthly live Q&As with Andreas, become a patron: RELATED: Worse Than Useless: Financial Surveillance -