Trump said he has the “genetics for space” today while announcing our new nuclear-powered interstellar craft to dominate space against China because his uncle John Trump went to MIT

If an extraterrestrial civilization can cross interstellar distances and actually reach Earth, then the materials they use for their ship’s hull are probably far beyond anything we classify as “spacecraft materials” today. A craft like that would need to survive: extreme cosmic radiation high‑velocity micrometeoroid impacts long‑term thermal and mechanical stress and possibly the effects of whatever propulsion method they use, especially if it involves manipulating spacetime So what *kinds* o...