Are we alone in the universe?
Contact with aliens is a popular theme in science fiction stories. Some people even think they have seen, or been contacted by, aliens. But so far, despite more than 30 Continue Reading
Contact with aliens is a popular theme in science fiction stories. Some people even think they have seen, or been contacted by, aliens. But so far, despite more than 30 Continue Reading
The origin of life might seem like the ultimate cold case: no one was there to observe it and much of the relevant evidence has been lost in the intervening Continue Reading