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How to Search for Life on Mars

Experiments now under development could finally answer one of the most profound questions in science: Does life exist outside of Earth?

By Christopher P. McKay and Victor Parro García

Coming Soon: New Machines That Know Exactly What's Bugging You

Machines that can quickly identify virtually any bacterium, virus or fungus are being developed for hospitals. Networking the devices could allow health authorities to save lives by spotting disease outbreaks earlier than ever before...

By David J. Ecker

Can We Control the Weather?

Governments and farmers worldwide spend millions every year trying to control the weather. New science suggests they might be on to something

By Dan Baum

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