STS-131 was a space shuttle mission that launched on April 5, 2010, aboard Space Shuttle Discovery. The primary objective was to deliver the Multi-Purpose Logistics Module (MPLM) named Leonardo to the International Space Station (ISS), which contained supplies and equipment for the astronauts. The mission lasted 15 days, during which the crew conducted various scientific experiments and performed maintenance tasks on the ISS. STS-131 was notable for its successful installation of new equipment and the transfer of critical supplies, enhancing the station's capabilities for future missions.