Astronomy Magazine has a cover story: life on other worlds could be more diverse than on Earth. I haven’t gotten my copy yet so I’m not sure what they mean by ‘diverse.’ It’s hard to imagine a world with more life forms and more variations than we have. But it might just be that my imagination is also getting old. I was able to track down a brief description of the article. A denser atmosphere could apparently have a major impact. As could longer days, caused of course by slo