Our resident Science Guy Joe Johnson is back with the science stories that caught his eye recently, including ancient tattoo patterns revealed on mummies in Peru using lasers; how your ear muscles “wiggle” when you struggle to listen; and that asteroid that could hit Earth in December 2032.

Image: A tattooed, mummified hand of a Chancay person from Peru from 1,200 years ago. (Credit: Michael Pittman and Thomas G. Kaye)