What do you need to know to prosper for 65,000 years or more? The First Knowledges series provides a deeper understanding of the expertise and ingenuity of Indigenous Australians. Aboriginal and Torres Strait Islander people are the oldest scientists in human history. Many First Peoples regard the land as a reflection of the sky and the sky a reflection of the land. Sophisticated astronomical expertise embedded within the Dreamtime and Songlines is interwoven into a deep understanding of changes on the land, such as weather patterns and seasonal shifts, that are integral to knowledges of time, food availability, and ceremony. In Astronomy: Sky Country, Karlie Noon and Krystal De Napoli explore the connections between Aboriginal environmental and cultural practices and the behaviour of the stars, and consider what must be done to sustain our dark skies, and the information they hold, into the future.