Source: The Wall Street Journal
The prospect of colonizing Mars used to be no more than a distant fantasy, but today it seems tantalizingly real. NASA remains committed to building a deep-space passenger capsule called the Orion. Meantime, private companies like Blue Origin and SpaceX are bringing excitement to the field. Elon Musk hopes to put 200 colonists on the red planet by 2024.
Much of the discussion about space exploration focuses on its economic benefits. Someday there could be money made from mining precious metals in the asteroid belt or shuttling.