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The Sky at Night team explore a changing world. Maggie Aderin-Pocock interviews astronaut Jessica Meir, who returned from 205 days on the International Space Station to a world she barely recognised. They also discuss Jessica’s experiments in micro-gravity, growing lettuce in space and the first all-female spacewalk. Chris Lintott meets the astronomer who recently announced the discovery of the closest black hole to Earth . Pete Lawrence photographs the dark side of Venus and Lucie Green investigates whether Elon Musk’s constellation of Starlink satellites are ruining the night sky.