This week on Radio Astronomy, Erin Boettcher and Zach Pace discuss a supernova that appeared 55 million light years away in the spiral galaxy NGC 5643. A type 1a supernova occurs when a white dwarf star accretes mass from a binary companion star. Learn more here: http://astronomy.com/news/2017/03/supernova-ngc-5643
AR Scorpii is a binary star system unlike any we’ve ever seen before! Listen to learn how astronomers discovered this bizarre system with a red dwarf star that is constantly under fire from the corpse of its binary companion.