Did you just wake up from a long nap?
The first successful landing of a rocket's first stage on a sea barge was achieved by SpaceX on April 8, 2016, with the Falcon 9 flight 23 mission. The landing occurred on the Autonomous Spaceport Drone Ship, named "Of Course I Still Love You," in the Atlantic Ocean.
Key details:
Mission: SpaceX CRS-8 cargo delivery to the International Space Station.
Launch: The Falcon 9 rocket launched from Cape Canaveral, Florida.
Landing: The first stage landed vertically on the drone ship.
Significance: This was a major milestone for SpaceX's reusability program, enabling them to recover and reuse rocket stages after launch.
Challenges: The landing required the booster to flip over, slow down, and re-engage its engines to land upright on the moving barge.