Matteo Franceschetti

“But those achievements pale next to the audacity of trying to send humans to Mars, which remains far beyond the present-day capability of NASA or any other space agency around the world. Even with an annual budget approaching $25 billion a year, and some of the smartest scientists and engineers anywhere, the space agency that landed humans on the Moon remains several giant leaps away from sending a few astronauts to Mars.”
― Eric Berger, Liftoff: Elon Musk and the Desperate Early Days That Launched SpaceX