Why Japan Probably Won't Have a Space Elevator by 2050

Japanese construction company Obayashi wants to build an elevator to space — and they want to use carbon nanotubes to get there. The Tokyo-based company plans to use 60,000-miles of the cylindrical carbon structures, anchored to Earth's surface, to shuttle an elevator to and from a distance about a tenth of the Moon's… » 2/24/12 1:20pm 2/24/12 1:20pm

This massive engineering project may be our best chance at colonizing…

Space colonization has reached an impasse, for reasons far more fundamental than a lack of money for the Space Shuttle program. There is simply no way humans can travel easily offworld without using massive amounts of rocket fuel to escape the gravity well — and that's both expensive and environmentally… » 8/18/11 5:26pm 8/18/11 5:26pm