Eric Berger
@SciGuySpace · Nov 9, 2019
The remarkable thing is that over its lifetime, the "full stack" cost of STS plus development was 1.5 billion per mission. SLS/Orion will end up being at least ~3 times that if the rocket makes 10 flights. Costs are going in the wrong direction.
Elon Musk
@elonmusk
Without a fully & rapidly reusable orbital rocket, humanity will never be a multiplanet species
12:40 AM · November 10, 2019 · 0 views
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