Here's China's impossible plan to build the world's tallest building in a …

By next March, a 220-floor skyscraper will stand in Changsha that will measure 838 meters (2,749 feet) in height, what will be the world's tallest building. And amazingly, construction hasn't even begun. While it took Dubai more than five years to build the Burj Khalifa building — what is currently the world's tallest … » 11/22/12 6:30am 11/22/12 6:30am

Should we terraform Venus first?

As a future terraforming species, we take it for granted that Mars will be our first megaproject. But while transforming the Red Planet into something more hospitable for life seems the most logical — if not easiest — first step towards colonizing the solar system, it may actually make more sense to tackle our sister… » 10/11/12 9:00am 10/11/12 9:00am