Tags John Jossy space advocacy grinding telescope mirrors building your own reflector telescope Halley's Comet orbiting LEO space station settlements amateur astronomy astronomical photography amateur telescopes SpaceX orbiting the Moon space colonization terminology Pluto dwarf planets dark sky telescope viewing the Milky Way Andromeda Orion Nebula International Lunar Observatory Association First Woman on the Moon contest computerized telescope mirror grinding Project Astro Space Force space law and policy advanced propulsion Drake Equation Exoplanets Dr. Gil Levin Viking life detection experiments Guest John Jossy Tagline astronomy, advocacy and much more View the discussion thread.