Ideas about directing evolution of life forms on Earth and finding life on other planets are rapidly morphing from science-fiction fantasy into mainstream science, says David Lynn, a chemist at Emory University.
"These areas of science are rapidly coming of age because of our increasing knowledge and advancing technology. It's an exciting time. We're on the threshold of answering fundamental questions including: What is life? Are there forms of life that we haven't even yet imagined? Are we alone in the universe?"
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