Course will emphasize emerging and current topical research in Planetary Science; course will be offered as needed or required. Sample course topics might include an active spacecraft mission, an emerging research area, or new discoveries. Course may be co-convened with PTYS 595B. Graduate-level requirements may include an additional project for graduate credit and extra questions on exams, depending on the course/topic taught. Course may be repeated for credit 3x (or up to 9 units).