"NASA invites nominations for service on NASA science advisory subcommittees of the NASA Advisory Council. U.S. citizens may nominate individuals and also submit self-nominations for consideration as potential members of NASA's science advisory subcommittees. NASA's science advisory subcommittees have member vacancies from time to time throughout the year, and NASA will consider nominations and self-nominations to fill such intermittent vacancies. NASA is committed to selecting members to serve on its science advisory subcommittees based on their individual expertise, knowledge, experience, and current/past contributions to the relevant subject area."
"NASA announces its annual invitation for public nominations for service on NASA Federal advisory committees. U.S. citizens may nominate individuals and also submit self- nominations for consideration as potential members of NASA's Federal advisory committees."