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  1. Grey Havoc

    The World's Most Remote Buildings (The B1M)

    A selection rather than an exhaustive list:
  2. Grey Havoc

    Proposal for New York Dollar coin showing Apollo Lunar Module rejected by committee

    https://www.space.com/apollo-lunar-module-new-york-coin.html :(
  3. Grey Havoc

    Russian 'Flying Train' (2018 onwards)

    This is back in the news again. Via SNAFU - Reminds me of a few projects from the 1920s and 1930s. Also, McDonnell Douglas had a project around the early 1990s for cargo, likely inspired by a Japanese project begun in the 1980s. Original promotional CGI video from 2018 (looks pretty much the...
  4. Grey Havoc

    RAM-EP: ESA Air Breathing Ion Thruster (electrical ramjet)

    https://www.esa.int/Our_Activities/Space_Engineering_Technology/World-first_firing_of_air-breathing_electric_thruster https://www.space.com/40056-air-breathing-electric-thruster-test.html https://newatlas.com/air-breathing-electric-thruster/53671/...