As a space traveler, you were far from the earth. You keep track of the ship and make sure it is running every day as well as collect data on space rocks and other things in space. When you are looking at a table of rocks, the space alarms start going off. You rush to the main room and look at what is casing it, and you discover that there was something opening a hatch and it walked into the spaceship, closed the door, and vanished.