A big step forward for reusable rockets and lower costs for access to space.

SpaceX launched a commercial satellite into space on Thursday with the boost of a partly used rocket, a feat that may open an era of cheaper space travel…

What was noteworthy was that the first stage, or booster, of the rocket had already flown once before. It could conceivably launch again, since it returned in one piece, landing on a floating platform in the Atlantic…

Until now, almost all rockets have been single use. Once the fuel is spent, a rocket stage plummets to Earth, a quick demise to a complex machine that cost tens of millions of dollars to build…

[Elon] Musk has suggested that rocket launches could eventually be much cheaper because the cost of rocket propellants is less than 1 percent of the full price for a launch. So if a rocket could simply be refueled like a jetliner for another flight, the cost of space travel could drop to a fraction of what it is now.