reusable launch systems

Reusable launch systems are spacecraft or rockets designed to be launched, recovered, and used again, much like airplanes. Instead of building a new rocket for each launch, these systems can return to Earth intact, undergo maintenance, and be launched again. This approach reduces costs and production time, making space access more economical and sustainable. For example, SpaceX's Falcon 9 rocket has first stages that land back on Earth after launch, ready for reuse. Reusable systems are a significant step toward more frequent, affordable, and environmentally-minded space exploration.