Few emotions are as nagging as regret —the mourning and melancholy that comes from fearing you picked the wrong mate, pursued the wrong career, or ended a marriage that you maybe could have saved.
Jeffrey Kluger is an Editor at Large at TIME magazine. He covers a range of topics including space, climate, and science, with a particular focus on NASA, space travel, and astronomy. Kluger is also featured in numerous publications such as Yahoo News, Environmental Health News, and MSN.










