This LEGO Women of NASA 21312 Set is a great set for LEGO collectors. It was fan created with 4 featured women of NASA. Build the Hubble Space Telescope and learn astronomy with the ‘Mother of Hubble’ Nancy Grace Roman. Develop the software for space missions with computer scientist Margaret Hamilton. And launch the space shuttle with Sally Ride, the first American woman to fly in space, and Mae Jemison, the world's first woman of colour in space. Build, play, learn and one day you too could become a science, technology, engineering or mathematics superstar! Nancy Grace Roman’s build features a posable Hubble Space Telescope with authentic details and a projected image of a planetary nebula. Margaret Hamilton's build features a stack of book elements, representing the books of listings of Apollo Guidance Computer (AGC) on board flight software source code. Sally Ride and Mae Jemison’s build features a launchpad and Space Shuttle Challenger with 3 removable rocket stages.