Li Cunxin on life after Mao's Last Dancer and how to appreciate the night sky

Even if you've never been to the ballet, you're probably familiar with Mao's Last Dancer. It tells the story of how a young boy in rural China was plucked out of poverty to train at the Beijing Dance Academy and went on to perform on stages around the world. More than 20 years later, Li Cunxin is releasing his second memoir, The Lucky Son, which picks up where Mao's Last Dancer left off and explores the lessons on love, leadership and legacy he has collected along the way.

Observational data has found that, every year, the night sky is becoming 10 per cent brighter because of light pollution from our growing towns and cities. It's not just stargazing that's being affected — light pollution can harm wildlife and even human health. Australasian Dark Sky Alliance founder Marnie Ogg and academic Julian O'Shea explain how we can protect our dark sky.

Celebrity endorsements have been around since marketing began. But how would you feel if you saw an ad featuring someone you were almost certain was dead? Last week a Swedish manufacturing company released an ad for ball-bearings featuring the AI likeness of Greta Garbo, the legend of Hollywood's golden age who died more than 30 years ago. Resident Life Matters philosopher Patrick Stokes explores the ethical quagmire known as "ghostploitation".