The First Nations cultures of Australia – Aboriginal and Torres Strait Islanders – speak over 250 distinct languages and stretch back for over 65,000 years. This makes the First Australians the oldest astronomers and the oldest continuing cultures in the world. Aboriginal and Torres Strait Islander people developed a number of practical ways to observe the Sun, Moon and stars to inform navigation, calendars, and predict weather. Australia’s First Nations people assign meaning and agency to astronomical phenomena, which informs Law and social structure. It also serves as the foundation for narratives that are passed down the generations through song, dance, and oral tradition over tens of thousands of years.