Elon Musk’s SpaceX is angling to become the first U.S. company to join an elite club of government space powers with the know-how and wealth to blast humans into orbit.
While that’s uncharted territory, what comes next will be far more difficult. Musk is trying to turn such voyages into a sustainable business that supports a thriving space colony hundreds of miles above the Earth’s surface and, ultimately, bankrolls forays to the moon and Mars.
