Opportunity’s eight years on Mars: A story of science and endurance NASA Spaceflight

Eight years ago today (January 25, 2004), the Mars Exploration Rover -B (MER -B) slammed into the Martian atmosphere and executed a successful Entry, Descent, and Landing on the Red Planet – beginning what was supposed to be 90 days of science operations on the surface of Mars. Eight years and 2,922 Earth-days later, Opportunity continues its mission of exploration of the Martian surface, unlocking the mysteries of Mars and serving as a symbol of endurance while paving the way for future human missions to the Red Planet.