For many, springtime on the East Coast means the welcome of thunderstorms. We had our first big storm yesterday, with window-shakingly close lighting strikes. One lightning strike was so close my office was filled with a pungent smell for about 15 minutes afterward. I love the smell of lightning, or more accurately, ozone. So, naturally, I got to wondering about how we detect and process the smell of ozone. Turns out, it’s pretty strange and mysterious!