In this episode, we discuss the varied methods used to determine stellar ages. Alex shares how planetary companions can slow the spin of twirling stars, Will compares the spectroscopic fingerprints of binary systems (thanks, Barium!), and Malena provides some peaceful pulsations to enjoy on your next afternoon walk.
Space sound: http://www.classicalmusicsentinel.com/KEEP/keep-talman.html
Credit: Jeff Talman and Daniel Huber