RT Tesla Owners Silicon Valley (@teslaownersSV)The hardest part of building the Starship is making a fully reusable orbital heat shield.Elon Muskhttps://t.co/rFKQnsQPs5 ...

“Normally most heat shields are expendable but for the shuttle they would lose many tiles between each flight. Solving a fully reusable orbital heat shield is the hardest problem.”Elon Muskhttps://t.co/rFKQnsQhCx ...

RT Tesla Owners Silicon Valley (@teslaownersSV)The hardest part of building the Starship is making a fully reusable orbital heat shield.Elon Musk https://t.co/7v4D4vTJpi ...