Posting here because abiogenesis and exobiology fits best in Biology, and assuming these sites will be reachable today: https://arxiv.org/abs/1610.03031 E. Borra 'Discovery of peculiar periodic spectral modulations in a small fraction of solar type stars' Less techy review: http://phys.org/news/2016-10-stars-strange-aliens-contact.html The researchers found 234 stars with anomalous values that could be (only remotely possible) the result of what they call an ETI signal. Alien intelligent life. I'm posting this 'cause its is fun to think about. So let's not go off the deep end. Considering some of the hooha associated with Halloween it seems okay to note this study.