10 - People Minus X by Raymond Z. Gallun

In a catastrophic experiment, humanity loses the moon and millions of lives on Earth. But from the ashes of this disaster rises a groundbreaking invention artificial flesh, allowing the deceased to return as androids, potentially ushering in a new era of a superior human species. As tensions flare between the naturals and the phonies, violence erupts. Will this scientific breakthrough grant humanity eternal life and the ability to traverse the stars, or will it lead to our ultimate downfall? (Summary by Mark Nelson)