Another week, another Cosmos episode, and another ridiculous creationist reaction.

This week the third Cosmos episode aired, focusing on the wonders of comets—such as Halley’s Comet, whose grand elliptical circumnavigation of the solar system parallels a human lifespan, as it did for Mark Twain—and the inevitable, glorious collision of our own galaxy with Andromeda. These are fascinating topics that can spark curious imaginations and make kids want to know more about science.

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