Conversations in Action episode #13# with former @NASA astronaut and @MIT professor Jeffrey Hoffman is out. He thinks: - returning to the Moon via Artemis is actually riskier than Apollo due to far less funding and testing; - there is a 100% probability of life existing elsewhere in our galaxy, and a 50/50 chance native to our solar system; - the Roman Space Telescope will transform cosmology using a mirror originally built for classified military satellites; - MOXIE's oxygen technology is essential for human Mars missions, saving 450 tons of launch mass needed to send 30 tons of return propellant; and - zero-g manufacturing (such as flawless fiber optics) is the likeliest path to space's first trillion-dollar industry.