How two monkeys, two chimps and a robot made Mercury possible - DVICE

How two monkeys, two chimps and a robot made Mercury possibleDVICEBefore NASA was ready to launch a human into space, it had to make sure that the rockets were safe, the space capsules were safe, and that space itself was safe (since we had no idea). And NASA had to be absolutely, positively sure, because if the ...and more »...