Summary: Ben is away but John Leeman of Don't Panic Geocast fills in. We discuss "green" propellent, New Shepard's third flight, and Justin Cowart also pops in to explain ASTRO-H.
Summary: Ben is away but John Leeman of Don't Panic Geocast fills in. We discuss "green" propellent, New Shepard's third flight, and Justin Cowart also pops in to explain ASTRO-H.