Lost in Space Harris as an older Will Robinson and Zachary Smith. They attempt one more time to return to Earth but find that they are "Lost in Space ... Forever!" Lost in Space showcased a variety of transportation methods of transportation in the series. The "Jupiter 2" is a two-deck, nuclear powered flying saucer spacecraft. The version seen in the series was depicted with a lower level and landing legs. On the lower level were the atomic motors, which use a fictional substance called "deutronium" for fuel. The ship's living quarters feature Murphy beds, a galley, a laboratory, and the robot's "magnetic
Lost in Space character. "Lost in Space" is remembered for the Robot's oft-repeated lines such as "Warning! Warning!" and "It does not compute". Smith's frequent put-downs of the Robot were also popular, and Jonathan Harris was proud to talk about how he used to lie in bed at night dreaming them up for use on the show. "You Bubble-headed Booby!", "Cackling Cacophony", "Tin Plated Traitor", "Blithering Blatherskyte", and "Traitorous Transistorized Toad" are but a few alongside his trademark lines: "Oh, the pain ... the pain!" and "Never fear, Smith is here!" One of Jonathan Harris's last roles was providing the voice of the