How Neo got his juice: Do you know your sci-fi energy?

Imagining worlds without oil sounds like the easy work of daydreams. But the future is a complicated place, even when we're making it up. Fantasy worlds have rules, and the best fans know them. Do you?

Question 2 of 12

2. The fuel for the Jupiter-2 spaceship power core in the TV series "Lost in Space" was:

Newscom/File

Deutronium, a pebbly substance the Robinsons and crew were constantly mining on different planets.
Smithium, a solar accelerant created in a condensation unit developed by the despised stowaway Dr. Smith.
Petroleum nut oil, all supplies of which were devoured by alien Argytes.

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