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SpaceX's Elon Musk: Humans will be on Mars in 10 years
Why Google bought Skybox, a satellite imaging startup
The U.S. is building a $914 million 'space fence'
A simple, 3D-printed product that's actually useful
Everyone hates email. Here's what could replace it.
Japan's 25-year plan to have space solar power
Why is today's SpaceX mission so important? Reusable rockets
International flood experiment to restore Colorado River delta
5 reasons why we live in interesting times -- 2014 update
Facebook explores aerospace, drones, lasers through Connectivity Lab
Zuckerberg, Musk invest in secretive artificial intelligence outfit
Who are the world's most 'satisfied' citizens?