From breathless to breathing freely. NASA engineer and mother Jodi Graf is grateful to celebrate another Mother’s Day after undergoing an innovative procedure to treat her terminal lung cancer. Now, the 61-year-old robotic software developer is cancer-free, can breathe easier and walk without an oxygen tank. 61-year-old NASA engineer and mother Jodi Graf underwent an innovative treatment for her advanced lung cancer. Northwestern Medicine Lung cancer is the leading cause of cancer-related deaths in the US, with cases on the rise in young women and those who have never smoked before. Graf had struggled with shortness of breath for nearly three decades, having been diagnosed in 2005 with interstitial lung disease, which causes scarring of the lungs, despite having no history of smoking. She remained relatively stable until her health took a turn for the worse and she had to rely on a supplemental oxygen supply.…