Mike Lemonick is a visiting Lecturer in Astrophysical Sciences, Freshman Seminars and the Princeton Environmental Institute at Princeton University. An opinion editor at Scientific American, he has also written for National Geographic, The New Yorker, Time, Discover, and Yale Environment 360 among others. He has written a number of books including The Perpetual Now: A Story of Amnesia, Memory and Love, Mirror Earth, The Search for Our Planet's Twin. Mike is a graduate of Harvard University and the Columbia University School of Journalism.