Last week, I had the distinct pleasure of attending a lecture given by Mary Roach. Many of you have probably read her books Bonk and Stiff, and thus you know she is a thorough researcher whose tastes run a bit on the weird side. As she put it, she likes to cover topics that combine "history, science, and some gross stuff." The lecture I attended was on her latest book, Packing for Mars, and the subject matter definitely fits the bill. Pooping in space, anyone?
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