It made me smarter and more handsome than my brother Mark [laughs]. With the twin study, particularly, there was a bunch of experiments that were genetic-based. And there are these things called telomeres, which are the ends of our chromosomes, and the length and quality of them are indications of our physical age. The hypothesis was that with me being in space, and the radiation, and the microgravity, maybe the stress of living there for a long period of time, my telomeres would get shorter and basically older compared to Mark’s. What they found is that mine got better. So physically I got a little younger than he is, and then once I got back they kind of went back to their normal, preflight condition.

So when the CO2 is at our normal low levels on the space station, it’s 10 times what it is on Earth. ...The Russians say that it should be high because it helps protect you from radiation

True to the racist views of the day, Fitzhugh did believe that blacks were “weak, ignorant and dependent” on the superior class of whites, but his racism was part of a class analysis common to socialists. In other words, the benefits that he believed blacks gained from slavery should also be applied to poor, less capable whites.

Socialism proposes to do away with free competition; to afford protection and support at all times to the laboring class; to bring about, at least, a qualified community or property, and to associate labor. All these purposes, slavery fully and perfectly attains.