Russian cosmonaut Andrey Fedyaev reveals that many astronauts in orbit have a recurring dream where they meet acquaintances on Earth who are surprised to see them. Fedyaev suggests that sharing these dreams with each other might be programming themselves to have such dreams. This common dream among astronauts may be a result of the close-knit environment and shared experiences. Research on putting astronauts into a state of hibernation has intrigued specialists in the space industry, but scientists have yet to figure out how to teach a person to enter hibernation.