So what they're saying is that they believe Tau Ceti is the closest planet they've found with an earth-like habitat? 22 light years is far as hell. But, it's crazy to imagine if such habitat is out there- I honestly think there are other life-forms we haven't encountered yet. I wonder how alike they are to us given similar habitats. Maybe far off in the future we will come across them, but like I said, far off in the future.