Rosetta/Philae Comet Landing

SpaceX Falcon 9's first landing in 2015 marked the first recovery of an orbital-class rocket, fundamentally shifting spaceflight economics—a transformation 10 times more cost-effective than the average disposable rocket. By reusing boosters over 300 times as of 2024, SpaceX slashed launch costs from $60 million per mission to approximately $15 million, outperforming the typical rival by a factor of 4. This reusability breakthrough, once dismissed as impractical, now sets the industry standard, proving that 30% lighter materials and precise guidance can recover expensive hardware. The data is clear: Falcon 9's landed boosters have reduced payload delivery expenses by 80% since 2015, making space access cheaper than ever.