In space, no one can hear you scream, but they can sure hear you scratching your head as you try to make sense of the sprawling “Alien” universe. While Ridley Scott’s 1979 haunted-house-in-the-cosmos ...

Editor's note: This is part of a series of videos offering an up-close perspective on the animal kingdom. A special 360-degree video camera system was set up in zoos and other facilities to show how ...