Japan Aerospace Exploration Agency announced on the 9th, the world's first one to rely solely on solar-driven space junk "Icarus" was the pressure of sunlight has been successfully used to achieve the body speed.
Currently, the "Icarus" is about 19 million kilometers from Earth, space, speed of 26 kilometers per second flight to Venus. As the angle of sunlight changes, the future is expected to further enhance its speed.
The pressure of sunlight, a very small area of about 200 square meters of sail after the solar energy received by the pressure of about 0.1 grams. However, in the absence of gravity and air resistance of space, the accumulation over time, the pressure of sunlight to the boat with great acceleration. It is reported that the next step, "Icarus" will be the direction of control experiments.
"Icarus" was about 14 meters square sails, by the production of polyimide resins, sail thickness of 7.5 microns.
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