Space Mission Planning & Operations (SMPO) is an open access journal. When a paper is accepted for publication, authors are required to pay Article Processing Charges (APCs) to cover its editorial and production costs. The APC for each submission is $1500. We are pleased to inform you that Space Mission Planning & Operations (SMPO) will waive the APC (Article Publishing Charge) until 31st March 2023. This will be applicable for any submissions received before this date, which are accepted for publication after peer review. There are no additional charges based on color, length, figures, or other elements. For more details, please refer to OAE Publication Fees.