Crashed spacecraft left tiny tardigrades on the moon plus a human, plant and animal library

In an attempt to create a "Noah’s ark" or a "back-up" for the Earth, non-profit organization The Arch Mission sent a lunar library — a stack of DVD-sized disks that acts as an archive of 30 million pages of information about the planet — to the moon. Along with the library, Arch Mission sent human DNA samples and a payload of tardigrades, which had been dehydrated, into space.
 
"We chose them because they are special. They are the toughest form of life we know of. They can survive practically any planetary cataclysm. They can survive in the vacuum of space, they can survive radiation," Nova Spivack, co-founder of the Arch Mission Foundation, said. Tardigrades have eight legs with claws at the end, a brain and central nervous system, and a sucker-like pharynx behind their mouth, which can pierce food.
 
 

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