Do we really need humans to explore Mars?, Ars Technica
"There's been a myth that there's some things you can do with robots and some only with people," Grunsfeld replied. "All exploration is human research. Even when we use robotic spacecraft, it's still human research. The question is how close are the people to the action? And it's also about the pace of discovery. When you have people on the scene, especially putting planetary scientists, geologists, astrobiologists on Mars, it's really going to accelerate the pace at which we can make discoveries." ... After lunch [Chris] Kraft and I drove back to his home, which overlooks a golf course a stone's throw from Johnson Space Center. As we shook hands in his driveway, he reiterated his closing argument to me: "Oh yes, I've heard the argument that we've been there before. I know that more than most. But we have unfinished business on the moon."
- #JourneyToMars Via #ReturnToTheMoon, Earlier Post