Cosmic Commodities: How much is a new planet worth?

A hazy view of a $5 quadrillion binary-planet system, the Earth and the Moon, as seen from Mars, a $14,000 world. Taken by Mars Global Surveyor on May 8th, 2003 at 9:00 AM, Eastern Daylight Time. [Maggie's Note: Yesterday, guest blogger Lee Billings introduced us to new batch of planets and planet candidates found by … Continue reading Cosmic Commodities: How much is a new planet worth?