Throw on your spelunking gear because this month
we’re wading deep into a Central American cave the Maya used for sacrificial rites. Why did they risk their lives to take their rituals underground? Then, take a trip down memory lane as we spotlight
five old-school science kits that have inspired generations of scientists. And learn about a high-risk cancer gene that surprisingly few doctors know about.
In this issue you'll also meet scientists who are proving quantum physics and
biology go together like peanut butter and jelly, and get the inside scoop on a proposed "superclock" that would be more accurate than any timekeeper ever created. So what are you waiting for? Time is a-wastin'!