This NASA JPL photo features an impact crater on Mars near Sirenum Fossae taken on the Mars Reconnaissance Orbiter (MRO) Mission. This is a great notebook for nerds, science geeks, sci-fi fans, aerospace engineers, astronomers, teachers, and students. Use this notebook as a journal, diary, or logbook. It's excellent for writing, planning, tracking, ideas, notes, lists, passwords, contacts, work, school, hobbies, and traveling...