The fabric walls have wide pouches that hold carbon-fiber plates that block radiation, while a battery pack and oxygen tanks replenish their suits. A solar flare makes an already-bad background radiation on the Martian surface—about 38 times that on Earth—even more dangerous. For this reason...
Going forward, I will no longer distinguish between “car” sales and “truck” sales. It doesn’t make sense anymore. It’s the end of an era, in terms of distinctions. It’s a hard thing to do, linguistically. I cut my teeth in the “car business,” as it was called confusingly...