How To Search For Earth-Like Planets
A team of astronomers at the University of Chicago and Grinnell College seeks to change the way scientists approach the search for Earth-like planets orbiting stars other than the sun. They favor taking a statistical comparative approach in seeking habitable planets and life beyond the solar system.
“The nature of proof should not be: ‘Can we point at a planet and say, yes or no, that’s the planet hosting alien life,” said Jacob Bean, associate professor of astronomy and astrophysics at UChicago. “It’s a statisical exercise. What can we say for an ensemble of planets about the frequency of the existence of habitable environments, or the frequency of the existence of life on those planets?”…
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