Reusable rockets are advanced launch vehicles designed to return to Earth after delivering payloads to space, allowing them to be refurbished and flown again. This innovation significantly reduces the cost of access to space, making space exploration more sustainable and economically viable. Companies like SpaceX and Blue Origin have pioneered this technology, demonstrating successful landings and re-flights. By reusing rocket components, these companies aim to revolutionize the space industry, enabling more frequent launches and expanding opportunities for scientific research and commercial ventures in space.