A CEA is an event that is devolved, with the guidance of the teacher, on your own terms and time with involvement from the local community. CEAs must have visitors. It relates to the Venus mission and/or your payload concept.You can have multiple CEAs during the semester; however, each CEA must be AT LEAST 30 minutes in length. At the conclusion of each CEA you must distribute and collect the completed CEA Visitor Surveys for verification of your attendance.