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If you haven't heard of a tardigrade before, prepare to be wowed. These clumsy, eight-legged creatures, nicknamed water bears, are about half a millimeter long and can survive practically anything: ...

New Delhi, Apr 21 (PTI) Indian astronaut Shubhanshu Shukla is expected to conduct at least seven experiments, including growing crops and studying “ultimate survivors” water bears in space, during his ...