Posts Tagged ‘planets’

Habitable Planets for Man – 2011

September 27, 2011

Back in 1964, RAND scientist Stephen H. Dole wrote a book titled “Habitable Planets for Man“. In it, he made a serious effort to first, define what was needed for a planet to be habitable, and second, to estimate the number of stars that might actually support such planets. Today, we had our first good test of his ideas. (more…)