Curious about green lights in the sky or life on Mars? Join astronomers, engineers, and science communicators from Siding Spring Observatory for an evening of light-hearted banter, debate, and discovery — all over a drink.

Once a year, Siding Spring Observatory opens its doors for a rare public day. Explore Australia’s largest optical astronomy site with talks from world-leading astronomers, science displays, markets, food, and more.

Each year, StarFest welcomes a special guest for the Bok Lecture, past speakers include astronaut Andy Thomas and world-renowned astronomers. Join us to discover this year’s guest and hear their out-of-this-world insights.