extrasolar planets

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Are we alone in the Universe?

Sarbajit Roy @roy1002 (3) • Dhanbad, India 16 Sep 14

The question of whether there is extraterrestrial life has fascinated human thinkers throughout history.In recent decades, technology has allowed us to move beyond pure speculation.We have sniffed for the tell-tale signs of water...

extrasolar planets

drakes equation