Discover and read the best of Twitter Threads about #HumansToMars

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Speaking at the 2020 #HumansToMars virtual conference, @elonmusk says that SpaceX will begin building the first Super Heavy booster (SN1) "this week." Engine count will be reduced to 28 "to simplify the configuration." Outer ring of 20 engines will use 250 ton-thrust Raptors.
@elonmusk: "It's within the realm of possibility" that Raptor's thrust-optimized variant can achieve a thrust-to-weight ratio of 200:1. AFAIK, that would be even better than Merlin 1D, which holds the current world record of ~180:1.
And Musk reiterates that Raptor's ultimate vacuum ISP target is still 380s, close to the physical limit for the O/F ratio Raptor operates at.
Read 3 tweets
SpaceX CEO Elon Musk is speaking at the virtual #HumansToMars conference (he's dialing in from Germany).

Thread:
@ExploreMars @SpaceX @elonmusk Musk: "Given enough time SpaceX will get to Mars," but it's not just about getting there, it's about when and how.

"We've got to build upon a Mars base and then we've got to build a city and get to the point where it's self-sustaining."
@ExploreMars @SpaceX @elonmusk Musk, on sending people to Mars: "I want to emphasize that this is a very hard and dangerous difficult thing, not for the faint of heart .. It's gonna be tough going and be pretty glorious if it works out."
Read 10 tweets

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