Most women under 30 think there is a vaccine for ovarian cancer, and there is not. A Melbourne chemistry researcher tells how some energy drinks contain high levels of a carcinogenic agent: It’s turning up by accident as a byproduct of the manufacturing process and until now the makers were probably unaware it was happening. An even stranger tale is that of the ghost of an exploding star that has been haunting Earth for 33,000 years. Meet the bird that saves its biggest songs for the full moon. Find out why women are clamming up about their birth experiences. And ponder how technology is changing the social dynamic of mental health care because of COVID-19.