Did supernovae make us walk upright?

Recent science news has been covering a paper drawing a connection between supernovae and the advent of human ancestors walking upright. The new headlines went viral, but their short titles made it hard to understand the actual findings of the research. Was this due to radiation causing genetic mutations? Did the supernovae impart some magical powers on our ancient ancestors? Or was it more circuitous than that? This week, James dives into the real research behind the headlines to uncover what findings were actually published in the paper.