The Rubin Observatory, leveraging gravitational lensing, will advance our understanding of dark matter as it warps and magnifies light from distant objects. With unprecedented sensitivity, it will vastly increase the known number of asteroids, comets, and Kuiper Belt objects, offering insights into our solar system's history and potential Earth threats. Beyond this, it will detect exoplanets, brown dwarfs, and unseen dwarf galaxies, enhancing knowledge of star formation environments and the Milky Way's composition. By cataloguing 20 billion previously unknown galaxies, it will aid in studying the cosmic web's structure influenced by dark matter. The observatory will also contribute to research on supernovas to measure cosmic expansion, possibly clarifying the nature of dark energy. Excitement surrounds its potential to transform astronomical research.