Space experiments hint weightless growth may speed biology
Biosatellite 2 data show bacteria multiply 20 to 30 percent faster in space than on earth. Researchers warn weightlessness could alter cellular turnover, with possible implications for long missions. Opened last September, the craft carried frog eggs, pepper plants, vinegar gnats and other specimens into a 45 hour orbit from Cape Kennedy.
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Gravity shapes growth in space and on Earth
A scientist notes growth speeds up in weightlessness and lab results show human cells react similarly. Space missions may need artificial gravity or drugs to curb rapid cell turnover. Pepper plant leaves also grow abnormally, indicating leaf orientation depends on gravity.
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