SkyCube

"We are developing a nano-satellite, and mobile apps to go with it, as the focus for a global education and public outreach campaign. The satellite, called SkyCube, is a 10x10x10 cm "1U" CubeSat intended for launch as a secondary payload on a SpaceX Falcon 9 rocket in 2013. Orbiting more than 300 miles up, on a path highly inclined to the Earth's equator, SkyCube will pass over most of the world's inhabited regions. SkyCube will take low-resolution pictures of the Earth and broadcast simple messages uploaded by sponsors. After 90 days, it will use an 8-gram CO2 cartridge to inflate a 10-foot (3-meter) diameter balloon coated with highly reflective titanium dioxide powder. SkyCube's balloon will make the satellite as bright as the Hubble Space Telescope or a first-magnitude star. You'll be able to see it with your own eyes, sailing across the sky. But SkyCube's balloon isn't just for visibility. It will - within 3 weeks - bring SkyCube down from orbit due to atmospheric drag, ending the mission cleanly in a fiery "grand finale" that avoids any buildup of space debris." More at Kickstarter

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