'The experiments performed by NASA's Viking landers may have accidentally killed Martian life by applying too much water,' scientist Dirk Schulze-Makuch said.
The idea of Mars being host to extraterrestrial life, either currently or long ago in the past, has beguiled scientists for centuries.The discovery of frozen water on the Red Planet gave scientists hope that life may be able to survive in the frigid world, as all life as we know it requires water to thrive.
After one rare heavy rainfall in the Atacama, up to 87 percent of microbial species perished as a result of the floods.'As lessons from the Atacama Desert show, if microbes are adapted to a hyperarid environment, they are likely to be very sensitive to too much water and would only be able to survive the exposure to small amounts of liquid water,' Schulze-Makuch said.
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