Building Nuclear Power in the U.S. Is Tough. NASA Wants to Do It on the Moon.

So do China and Russia. Here’s what you need to know about America’s new lunar-energy race ...
Morning Overview on MSN

Exoplanet 30 light-years away has two suns

Scientists have recently uncovered a fascinating new exoplanet a mere 30 light-years away from our solar system. What sets this celestial body apart is its intriguing orbit around not one, but two ...