Dr Ciaccio (not a doctor) explores the new lab-grown mammoth meat, the "vagina on a microchip" being used to study the human biome, some resilient little flying robots, a vaccine for honeybees, and new evidence for what we already knew: the ultra-rich are cognitively less intelligent than the general population. Plus in Space Madness, how do you weigh a Galaxy Cluster? A.I. found a way, and didja know the JW Telescope posted a detailed pic of Uranus?