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dracodraconisLife-friendly worlds may snap, crackle and pop - space - 24 March 2009 - New Scientist
Scientists propose the it may be easier to detect the exoplanets by their magnetospheres than using optical methods because auroras produce radio signals that could be detected from earth. The catch is that we would need a space-based radio telescope 100 times as sensitive as anything currently being planned. Magnetospheres would help to preserve atmospheres and oceans so are believed to be a good indicator that complex life might exist there.