Monday, June 21, 2010

Solar Sailing

Japan Space Program Shines with Hayabusa, IKAROS Success - TIME

"The country that invented the Walkman may be back on track to burnish its image as a technological pioneer. Right now, more than 4.7 million miles from Earth, is a revolutionary spacecraft that could be the future of interstellar travel. Japan's space program, JAXA, confirmed on June 10 they had successfully unfurled the world's first solar sail — a spacecraft that uses the velocity of sunlight to propel it. Then, just three days later, Japan announced what could be an even more impressive accomplishment: a spacecraft that left Earth seven years ago had returned home. Before brilliantly burning up over Australia, the ship ejected a soccer-ball-sized pod — a modest container that may contain the first fragments of an asteroid ever brought to earth and provide clues about the origins of our planet. Not bad for a spacecraft running three years behind schedule and without three of its four engines..."

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