From 2001 - 2006 Keck was a reporter for WHYY-FM in Philadelphia, for which she won a number of national Associated Press awards as well as a Gracie Award from American Women in Radio and Television. She is a frequent contributor to National Public Radio (NPR) and the public radio program Marketplace.

Keck is the author of the 2004 non-fiction book Einstein A to Z with co-author Karen C. Fox. She graduated from Lehigh University in 1992 and lives in Maryland.