When the thing from outer space visits earth, it is mistaken first for a trick-or-treater. Then it is mistaken for a robot.
What would it be like to meet beings from another planet? LeVar sends a special invitation to all the aliens who might be watching -- to visit Earth, and shows them some of the Earth's wonders. We visit Puerto Rico to learn about earth's biggest radio receiver/telescope where scientists listen to outer space, and California to see an observatory where astronomers use a gigantic telescope to scan the skies.
