Michelle! Do you want to go to Mars? “Let’s go!” The two young girls dashed off to Mars, reinforcing the premise of the newest Pacific Science Center exhibition – “Space” – that an exhibit, a film, a speech can be an inspiration for a young person. Ask Susan Helms. As a child, she visited the center and was inspired to dream of becoming an astronaut. Today, Air Force Col. Susan Helms holds the record for the longest space walk, spent six months on a space station and starred in the IMAX film “Space Station 3D.”