“The trampoline is working”—SpaceX returns human spaceflight to America

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  Falcon 9 lifts off on its most important mission to date: carrying NASA Astronauts Bob Behnken and Doug Hurley into orbit. [credit: Trevor Mahlmann ]

The rain showers ended. The clouds parted. And so on Saturday afternoon, SpaceX's Falcon 9 rocket had blue skies above it during the final minutes of a countdown to launch from Kennedy Space Center in Florida.

The Falcon 9 rocket had launched 84 times before. In fact, no US rocket now flying has launched as much as the Falcon 9 rocket. So, this was all kind of routine in that sense. But for the first time, the Falcon 9 rocket carried two humans on board, inside a Crew Dragon spacecraft. That changed everything.

So much was at stake, the immensity of this almost became too much to bear as the clock ticked down.

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