In a recent interview cosmologist Charley Lineweaver outlined his views on our efforts to find ET.
Lineweaver argues that searching for life like that found on Earth is the wrong way to go about things. "Imagine if some historian wanted to know about the origin of France," he said. "Most French people now have passports. So imagine the historian went out on an archaeological dig to look for French passports. That would be ridiculous."
The correct way forward, he contends, is to widen the definition of 'life' because we simply don't know what type of living organisms could be out there. "You could say all life today has DNA, but in the past, who knows?" he said.
"What's wrong with the definition of "life"? Almost everything."
View: Full article | Source: New Scientist
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