The purpose of the Secondary Payload is to allow European academic and industrial entities to propose educational projects or science experiments or technology demonstrations as passengers to the demonstration mission.
The closing date for filling the survey of the Call for interest of Secondary Payload on EROSS + is 14:59pm (CET), 20 January 2023.
Don’t forget to put the date in your calendar!
Link: https://eross-h2020.eu/eross-plus/passenger-event