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Power Rangers, Firefly — the armor from this movie has shown up everywhere. After getting passed around Hollywood for years several of the suits were eventually sold for use in the third movie, making this a weird circular trope.
The USM Auriga in Alien: Resurrection appears to have been made from a modified model of the Rodger Young, or one of its sister ships.
Science Marches On: The planet where life doesn't evolve because it doesn't get enough mutation-causing radiation. We now know that even with zero radiation, the enzymes that replicate DNA still make mistakes sometimes.