I realized that a methane-oxygen rocket engine could achieve a specific impulse greater than 380.
Elon MuskYou can just reload, propel it and fly again. This is extremely important for revolutionizing access to space because as long as we continue to throw away rockets and space crafts, we will never truly have access to space.
Elon MuskI'd like to dial it back 5% or 10% and try to have a vacation that's not just e-mail with a view.
Elon Musk