[Vince Ferrer]

I don’t mean to put down an astronaut, but they are just super-trained pilots. They have no more knowledge of biology than anyone else, unless they were specially trained for a biology mission. He is certainly entitled to his own opinion, but that’s all it is.

[NorthMountain]

. They have no more knowledge of biology than anyone else, unless they were specially trained for a biology mission.

On the later Moon missions, they were specially trained for geology.