The question, "Are we alone in the universe?" has been one of the most complex thoughts that has baffled many of us. We have not found yet any conclusive evidence of outer space life. However, a NASA veteran believes there is life somewhere out there, and that it is "arrogant" to say we are alone in the void.
Dr. Leroy Chiao discussed his idea in Space.com, fueled by the recent discovery of an exoplanet orbiting Proxima Centauri, the closest star from our solar system. The planet, named Proxima b, is believed to be orbiting in or near the Goldilocks zone, where right temperatures make it possible for a planet to support life.
"I believe that there is life all over our universe, since it would be the height of arrogance to think that we are alone," Chiao said, adding he had thought of the question as he flew many times in space. But, he explained the search won't be easy due to astronomic distance and technological limitations. However, he expressed confidence that in this century, at least, humanity would be more likely to find evidence of past, or even current microbial life on Mars.
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