The lower half of a double bill with The Giant Claw, The Night the World Exploded, once again, has a scientist, his Girl Friday, and the wonders of technology. So for the price of one movie ticket you got a lecture on antimatter and one on geothermal activity. Of course, these movies wouldn't be science fiction without some sort of monster. For The Giant Claw there's an astro-bird and for The Night the World Exploded you get little black rocks that grow in size until they blow up or, as the tagline reads, "Terror from above! Horror from below!"
Comic reader version: Download Night the World Exploded Pressbook