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This is Scientific American's 60-Second Tech. I'm Larry Greenemeier. Got a minute?

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About half the world's population doesn't have access to the Internet.

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Now two prominent entrepreneurs say they'll address the tech issues contributing to this digital divide.

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SpaceX's Elon Musk wants to launch a new $15 billion constellation of mini communications satellites into near-Earth orbit to provide fast, low-cost and more comprehensive global Internet coverage.

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Communications satellites generally operate from geosynchronous orbit some 22,000 miles above the Earth's surface.

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The Musk satellites would transfer data packets only 750 miles up, through the planet's exosphere, rather than via a tangle of terrestrial networks.

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If successful, the new network could rival fiber optic cable service speeds and be available in currently poorly served areas.

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That is, if rival tech mogul Greg Wyler doesn't get there first, with his OneWeb venture.

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Wyler appears to have a leg up with his proposed 648-micro satellite network:

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he claims to own access to the spectrum frequency needed to communicate in low-earth Orbit.

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Internet satellite ventures do not have a good track record and it's not clear that there's room for two distinct networks.

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The bet here is that that two billionaires eventually team up and divide the pie in the sky.

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Thanks for the minute, for Scientific American's 60-Second Tech. I'm Larry Greenemeier.

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