As SpaceX continues to push boundaries in space technology, what is the most significant achievement of the past two decades?

SpaceX has made significant advancements in space technology over the past two decades, from early rocket prototypes to ambitious Starship missions.

• Option 1: The development and landing of multiple Falcon 9 rockets
• Option 2: The successful launch of numerous satellites and spacecraft
• Option 3: The demonstration of reusable launch systems
• Option 4: SpaceX's focus on establishing a permanent human presence on Mars