In this image provided by NASA, the SpaceX Dragon capsule arrives at the International Space Station, Sunday, Dec. 8, 2019. The Dragon capsule arrived at the orbiting outpost Sunday, delivering “mighty mice,” pest-killing worms and a smart, empathetic robot. (NASA via AP)

In this image provided by NASA, the SpaceX Dragon capsule arrives at the International Space Station, Sunday, Dec. 8, 2019. The Dragon capsule arrived at the orbiting outpost Sunday, delivering “mighty mice,” pest-killing worms and a smart, empathetic robot. (NASA via AP)

CAPE CANAVERAL, Fla. (AP) — SpaceX made an early holiday delivery to the International Space Station on Sunday, bringing muscle-bound “mighty mice,” pest-killing worms and a smart, empathetic robot.

The station commander, Italy’s Luca Parmitano, used a large robot arm to grab onto the Dragon three days after its launch from Cape Canaveral. The two spacecraft soared 260 miles (420 kilometers) above the South Pacific at the time of capture.

“Whenever we welcome a new vehicle on board, we take on board also a little bit of the soul of everybody that contributed to the project, so welcome on board,” Parmitano told Mission Control.

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It marks the third visit for this recycled Dragon. Flight controllers quickly secured the capsule to the orbiting lab, paving the way for the hatch to open and the unloading to begin.

The capsule holds 3 tons (2,720 kilograms) of supplies, including 40 mice for a muscle and bone experiment. Eight of them are genetically engineered with twice the normal muscle mass — and so are considered “mighty mice.”′ There also are 120,000 roundworms, or nematodes of a beneficial variety that are part of an agricultural study aimed at controlling pests here on Earth.

The capsule also has a large, round robot head with artificial intelligence and the ability to sense astronauts’ emotions. Named Cimon, it’s an improved version of what flew up last year to be tested as an astronaut’s helper.

NASA has tucked some Christmas presents in the shipment for the station’s six-person crew, as well.

It’s SpaceX’s 19th delivery to the orbiting outpost for NASA over the past seven years.

The astronauts have another shipment coming Monday — this one launched by Russia from Kazakhstan on Friday.

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The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute’s Department of Science Education. The AP is solely responsible for all content.