The Jet Propulsion Laboratory has just completed building twin rovers that will launch to Mars in May and June of this year. This is the first and last opportunity to see both rovers while they are still in JPL’s Spacecraft Assembly Facility before they are packed up and sent to Cape Canaveral, Fla., to be prepared for launch. Reporters will be able to don protective “bunny suits” to get an up close view of the rovers inside the clean room. Reporters who enter the clean room must be wearing long pants and closed toe shoes. No shorts, skirts or sandals are permitted in the clean room.