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SpaceX joins competitor Blue Origin in successfully reclaiming a used rocket.
SpaceX could save millions by refurbishing its first-stage boosters.
Failed missions to the ISS leave NASA and researchers with the bill.
Musk's biographer on the entrepreneur's upbringing, career and innovation.
Companies like Orbital Sciences and SpaceX ferry cargo to the International Space Station for NASA. Many are wondering about the scale of this business.
Poverty, Internet drones and space taxis; here are the numbers we're watching.
After some false starts, private rocket maker SpaceX launched a rocket carrying a large commercial satellite into outer space yesterday.
