HD 20782b’s orbit closely resembles that of a comet, making it the most eccentric planet ever known. This artist’s rendering shows HD 20782b, the most eccentric planet ever known. Image credit: NASA’s Goddard Space Flight Center. According to a team of astronomers led by Dr. Stephen Kane of San Francisco State University, HD 20782b is a giant exoplanet located 117 light-years away in the constellation of Fornax. The planet has a minimum...