Talk CriticalFree narrated courses on keeping in touch when the phones go down: hand-crank radio, GMRS, ham radio, satellite, GPS and computers.
Solar CriticalOff-grid solar, explained: from a 100-watt kit to an 8,000-watt home system, with every part explained.
Pass the PoolFree practice exams: ham radio Technician, General and Extra, FAA and drone, citizenship, boating and CDL.
Critical MassCritical Mass: Evolution of a Nuclear Engineer, Joe Miller's memoir.
© 2026 Joe Miller · Solar & Mars Landing. Facts were checked against the sources listed on each page in November 2026; space plans change often, so dates are targets, not promises. This site is independent and is not affiliated with NASA, SpaceX or Tesla.