Leeward side needs nothing, windward side will be activity cooled with residual (cryo) liquid methane, so will appear liquid silver even on hot side
— Elon Musk (@elonmusk) December 25, 2018
Skin will get too hot for paint. Stainless mirror finish. Maximum relfectivity.
— Elon Musk (@elonmusk) December 24, 2018
Yes, but single stage to orbit with no payload is pointless. Add Super Heavy rocket booster & orbital payload is gigantic. Only need booster on Earth, due to deep gravity well & thick atmosphere. Starship alone on moons & Mars.
— Elon Musk (@elonmusk) December 22, 2018
Probability at 60% & rising rapidly due to new architecture
— Elon Musk (@elonmusk) December 27, 2018
Vacuum optimization will come with later iterations on BFR, at least according to his Sept. 2018 presentation. For now, Raptor SL or a medium-expansion compromise will do double duty on the booster and upper stage(s). Makes development dramatically simpler.
— Eric Ralph (@13ericralph31) December 27, 2018
Exactly
— Elon Musk (@elonmusk) December 27, 2018
I will provide a detailed explanation in March/April
— Elon Musk (@elonmusk) December 27, 2018
Appears we have a mating. Follow the rocket gossip here ~~> https://t.co/pQDMAlpruB 📷: BocaChicaGal #FlyBocaChica #SpaceTeX pic.twitter.com/Ljn7IYN8dB
— Cowboy Dan (@CowboyDanPaasch) December 28, 2018