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"To me, and what I would guess were most of the engineers around me, the whole point was space exploration. Full stop. Not climate studies, not "science for science's sake", but engineering (not science) to get us into space."

There's obviously another branch of Nasa, otherwise how does James Hansen ever work there?

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James Hansen has not worked for NASA for two years, but that's nitpicking -- your point is correct.

There are multiple NASA centers who generally see the enterprise of space exploration differently. JSC and KSC are more focused on "putting men [sic] in space" (as the parent commenter said). GSFC is more focused on observing Earth and the Sun from space. JPL is more focused on robotic planetary exploration. Those are gross generalizations, because GSFC has been heavily involved with Hubble, and JPL does some Earth missions, etc.

I don't know who James Hansen is. The above is how I think NASA should operate, not how it actually does. I think NASA gets easily distracted by science, when it should be an engineering organization devoted to space and flight (more space than flight these days). Many smart people disagree.

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