The Science of Aging Knowledge Environment (SAGE KE) is an online scientific resource provided by the American Association for the Advancement of Science (AAAS), which also publishes the journal SCIENCE.
SAGE KE is the third in a series of Knowledge Environments developed by SCIENCE and AAAS, after the Signal Transduction Knowledge Environment (STKE) and AIDScience. Funding for SAGE KE comes from The Ellison Medical Foundation, founded and supported by Oracle Corporation CEO Larry Ellison.
SAGE KE published its final issue on 28 June 2006.