SpaceX launched Christmas gifts, goodies and supplies to the International Space Station (ISS) on Tuesday, December 21, and received a present in return: the company’s 100th successful rocket landing.

The predawn liftoff from NASA’s Kennedy Space Center was barely visible in the fog and clouds, as the Falcon rocket hoisted a Dragon capsule loaded with more than 6,500 pounds (2,950 kilograms) of gear for the station’s seven astronauts. Several minutes later, the first-stage booster landed upright on an ocean platform, six years to the day that Elon Musk’s company accomplished its first booster touchdown in 2015.

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This particular booster was making its first flight. A few days ago, a SpaceX booster made its 11th flight.

“It’s critical to lower the cost of spaceflight to continue to reuse these boosters more and more times. A hundred is a big milestone, so we’re excited about that,” said SpaceX’s Sarah Walker, a mission manager. “We’re also excited to see how few new boosters we have to produce as the years go by.”

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Included in the items due to arrive at the space station on Wednesday are Christmas presents from the astronauts’ families, apart from delicacies like smoked fish and turkey, green beans and fruitcake, all of which make for a splendid holiday feast. NASA’s space station program manager Joel Montalbano wouldn’t divulge anything else. “I won’t get in front of Santa Claus and tell you what’s going to be sent up,” he told reporters on the eve of launch.

The delivery to the ISS also includes an experiment concerning laundry detergent. Currently, station astronauts just trash their dirty clothes, with no options to clean them in space. However, Procter & Gamble Co. is developing a detergent that is fully degradable. It is meant for eventual use at the station, on the moon and beyond, in mankind’s space explorations. 

SpaceX is ending the year with 31 launches, the most ever by the company.

[Edited with AP Inputs]