A terse announcement from the SolarStratos project last week caused some dismay in your editor, but also gave hope that a brave project would go forward. “Payerne, July 6, 2018 – the solar stratospheric SolarStratos aircraft damaged this morning during a resistance test on Earth, in the base of the team at Payerne. No risk:” The bad news, “However, the wing was damaged and its repair will cause a delay in the team’s operational schedule,” was reminiscent of a failure of the Solar Impulse’s wing during static testing. The break set that project back over a year but resulted in a wing that carried Solar Impulse 2 to Morocco and back, across the U. S., and finally, around the world. Raphael Domjan, founder of the SolarStratos project, takes a philosophical view of the setback. “Our plane is a unique prototype, destined to accomplish what nobody has done so far: fly to the stratosphere in a clean way, thanks to solar …