Falcon 9's Second Stage Restart was Just as Important as Sticking the Landing - SpaceNews.com: "PARIS — SpaceX’s successful deployment Dec. 21 of 11 Orbcomm machine-to-machine messaging satellites and the apparently clean return and landing of the upgraded Falcon 9 rocket’s first stage also validated the ability of the redesigned second-stage propulsion system to restart in orbit after a coast phase, SpaceX said.
"
'via Blog this'