Charles Petit is the lead writer for the <a href="http://ksjtracker.mit.edu/">MIT Knight Science Journalism Tracker</a>. He also does freelance reporting and was for 26 years a science writer for the San Francisco Chronicle and spent six years at U.S. News & World Report. He is the past president of the <a href="http://www.nasw.org/">National Association of Science Writers</a> and serves on the board of the <a href="http://casw.org/">Council for the Advancement of Science Writing</a>.
