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Aging - Jan. 2007Will research into "longevity genes" help us live longer and healthier lives?
Space Elevator - Jan. 2007Can we build a 22,000-mile-high cable to transport cargo and people into space?
Maya - Jan. 2007NASA archeologists use satellites to pinpoint ancient ruins buried deep in the jungle.
Profile: Bonnie Bassler - Jan. 2007Her insight into how bacteria "talk" has launched a revolution in biological and medical research.
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