MANIFEST (Many-Instrument Fiber System) will be one of the groundbreaking instrument on the Giant Magellan Telescope (GMT), empowering astronomers to study the universe in incredible detail. This advanced fiber-optic positioning system allows the GMT to connect with multiple instruments and capture light from multiple objects simultaneously across the vast field of view of the GMT. For Australian astronomy, MANIFEST opens new opportunities to explore distant galaxies and stars with unmatched precision and resolution. This talk will delve into MANIFEST innovative design and capabilities, its integration with the GMT and implications for advancing cosmology, stellar evolution, and our quest to understand the galaxy evolution.