Today’s Weekly Muppet Wednesday article was written by Michael Wermuth, Jr. THE MARTIANS   Performed by… Various (1971-present) First appearance… Sesame Street Season 3 (1971) Most recent appearance… iYipp iPhone application (2011) Best known role… Visitors from Outer Space Also known as… The Yip-Yips WHO ARE THE MARTIANS? The Martians are extra terrestrials who visit…