Astrophysicist Sarafina Nance on Body Positivity and Overcoming Adversity.

Astrophysicist Sarafina El-Badry Nance, who underwent a preventive double mastectomy at 26, has posed for Sports Illustrated's swimsuit issue to challenge stereotypes about female scientists and promote body positivity. Nance, who is completing her Ph.D. in astrophysics, said there are not enough women in astronomy and physics, especially women of color, and hopes to inspire young women to pursue scientific fields. She became an advocate for women's health after discovering she carried the cancer-causing mutated BRCA2 gene.