Summer Ash is a self-professed space cadet. She’s an astrophysicist at Columbia University’s Department of Astronomy in New York City, where she serves as the Director of Outreach. Five years ago, she underwent open heart surgery after she was diagnosed with an aortic aneurysm (that’s when the tissue of the aorta balloons out dangerously). This condition was likely linked to a congenital heart defect Summer was born with called a bicuspid aortic valve. About 99% of people, she explains, are born with a normal tricuspid aortic valve (meaning three leaflets in the valve), but she was one of the 1% born with only two. With her kind permission, I’m running her story here as it was originally published in 2014 on her blog, Defective Heart Girl Problems.