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From NextBigFuture.com The Carnival of Space 250 is up at Vintage Space
The public emergence of the 100 Year Starship organization prompts thoughts from Paul Gilster at Centauri Dreams.
"Universe Today – With the recent announcement of the asteroid mining company, Planetary Resources, some of the most-asked questions about this enticing but complex endeavor include, what asteroids do we mine? Which are the easiest asteroids to get to? Could it really be profitable? A new website called Asterank, uses available data from multiple scientific sources on asteroid mass and composition to try and compute which asteroids would be the best targets for mining operations. "
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