The Space Shuttle Discovery executed its STS-120 mission, lifting off from Kennedy Space Center in Florida on October 23, 2007. This mission was particularly noteworthy as it was commanded by Pamela Melroy, making her the second woman ever to lead a space shuttle flight, an impressive feat in a field that had previously seen limited female representation in leadership roles. The primary objective of STS-120 was to install the Harmony module onto the International Space Station (ISS), a key part of NASA's ongoing effort to create an operational hub for international collaboration in space exploration and research. Harmony would serve as a connecting point for additional modules and international contributions, facilitating enhanced research capabilities within the ISS.Discovery's launch was characterized by a flawless ascent, highlighting NASA's continued advancements in shuttle technology and mission execution. The mission lasted for 15 days, during which astronauts conducted four spacewalks to successfully attach the Harmony module. Additionally, the crew worked on various scientific experiments to demonstrate the capabilities of the station. The mission involved a diverse team, including the first Italian astronaut to fly on a shuttle mission, further emphasizing NASA's commitment to international cooperation in space exploration.Upon successful completion of STS-120, Discovery made a safe landing back at Kennedy Space Center on November 7, 2007, concluding a mission filled with scientific achievement and showcasing the contributions of women in space and exploration leadership roles.