TODAY THE ISS... TOMORROW MARS?

摘要

Docking with the ISS is a key milestone for commercial spacef light but it's a mundane venture compared with other plans Here are our picks from a variety of destinations announced in recent months, often with the backing of technology billionaires. 1.ASTEROIDS Backed by Google's Larry Page and Eric Schmidt and Microsoft Word creator Charles Simonyi, Planetary Resources of Seattle, Washington, plans to mine asteroids for water and precious metals like platinum.