4 ms·

I'm mainly surprised that we have reusable space planes at all. You'd think that would get more attention.

• riffraff 7y ago
  this still gets launched with a rocket, it's basically a very small unmanned space shuttle, so it's not as "cool" as, say, something that goes to orbit from the ground on its own.
  • TeMPOraL 7y ago
    Are single-stage to orbit (SSTO) spaceplanes even possible on Earth with current chemical rockets? They're a PITA to build in Kerbal Space Program, and there the universe is 1/10 the size of the real one (albeit with the same gravitational acceleration).
    • mabbo 7y ago
      They are possible, but not economically feasible. Tim Dodd has a fantastic video showing just how ineffective they are. Two (or three) stage rockets are just so much more efficient.
      • mabbo 7y ago
        Went and looked it up: https://www.youtube.com/watch?v=Sfc2Jg1gkKA https://www.youtube.com/watch?v=Sfc2Jg1gkKA Tim Dodd (The Everyday Astronaut) is just a very good speaker on all space-related topics. Him and Scott Manley (with a healthy dose of Kerbal Space Program) are incredible teachers about space.
    • SEJeff 7y ago
      There was a lot of discussion after Elon Musk said that Starship (aka the BFS aka Big "Falcon" Spaceship aka the second stage of their starship) will be able to do SSTO, however it would only be able to SSTO with virtually zero payload whatsoever, so isn't very useful.