Here's what to know about the "devil comet," officially known as 12P/Pons-Brooks, and how to look for it on April 8.Start the day smarter. Get all the news you need in your inbox each morning.

The moon, nearly two nights past first quarter and appearing as a waxing gibbous phase, 70% illuminated, will appear to stand almost directly above a very bright, non-twinkling, silvery "star." ...