October 5, 2006 Medical School Dean Announces Retirement For coverage by the Harvard News Office, visit this article by the Harvard Gazette [external link] Most popular There’s a growing movement to curb light pollution. It starts on your front porch. As weight loss medications become more common, Daniel Lieberman discusses the importance of preserving muscle. The wealth and fall of David and Jackie Siegel: a documentary A documentary film turns a lens on the “1 percenters.” Explore More From Current Issue Alumni Profiles Nobel Prize recipient Joseph E. Murray dedicated much of his career to organ transplant surgery. Undergraduate Column For both American and international students, growing up is like learning a new language. Research Harvard scientists identify hundreds of genes under selective pressure.