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The team behind the $ 7 million project said it has demonstrated a new form of propulsion that could one day transform distant space exploration.
Because this bread-sized satellite equipped with a huge glossy polyester sail is powered neither by a motor, nor with the help of fuel or solar panels, but only by the pressure of the elusive photons of the Sun.
"Over the past four days, the spacecraft has climaxed, or its highest point in orbit, of about 1.7 kilometers thanks to its solar sail"explained Bruce Betts, LightSail 2 project manager.
This technology allows us to take objects to extraordinary destinations in the solar system
It becomes the first ship to use a solar sail to propel itself into Earth orbit and the second solar sail to fly successfully after the Japanese Ikaros in 2010.
"We officially declared the success of the mission", welcomed on Twitter Bill Nye, director of the Planetary Society.
"This technology allows us to take objects to extraordinary destinations in the solar system, and perhaps beyond, in a way that was never possible because we do not need fuel or systems. to control the fuel", he rejoiced.
He added that he would like to see technology applied to missions such as the search for life on the planet Mars, on the frozen moon of Jupiter, Europe, and Titan, the largest moon of Saturn. Solar sails could according to him "to lower the cost of these missions".
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