This year, we celebrate both Matariki and World Refugee Day on 20 June - a perfect opportunity to think about the significance of stars and constellations in different cultures. Carla Millar provides an introduction to Matariki, then guests talk about stars, constellations and associated celebrations in their cultures: Sen Nhiang (Jarai ethnic group from central highland Vietnam), Marianna Boless (Assyrian) and Naomi Peters (Japanese).