Why do people talk about Mars so much, when Venus is way closer to Earth in both distance and size? Possibly because it's a hell planet that would destroy all life.In other astronomy news, you ought to know the story of Caroline Herschel (1750–1848), discoverer of comets and the first woman to be paid for her work in science.And brewer Jon Seltin tells us about the strange and complex bacterial processes that produce the unique tastes of Belgian lambic beers, and how they need to get sick before they get better.