Four astronauts from four countries rocketed toward the International Space Station on Saturday.
They should reach the orbiting lab in their SpaceX capsule Sunday, replacing four astronauts living up there since March.
A NASA astronaut was joined on the predawn liftoff from Kennedy Space Center by fliers from Denmark, Japan and Russia. They clasped one another's gloved hands upon reaching orbit.
Read: India’s lunar mission inches towards historic success
It was the first U.S. launch where every spacecraft seat was occupied by a different country — until now, NASA had always included two or three of its own on its SpaceX taxi flights. A fluke in timing led to the assignments, officials said.
“We're a united team with a common mission,” NASA's Jasmin Moghbeli radioed from orbit.
Moghbeli, a Marine pilot serving as commander, said her crew’s makeup demonstrates “what we can do when we work together in harmony.” With her on the six-month mission are the European Space Agency’s Andreas Mogensen, Japan’s Satoshi Furukawa and Russia’s Konstantin Borisov.
“To explore space, we need to do it together,” the European Space Agency's director general, Josef Aschbacher, said minutes before liftoff. “Space is really global, and international cooperation is key.”
The astronauts' paths to space couldn’t be more different.
Moghbeli’s parents fled Iran during the 1979 revolution. Born in Germany and raised on New York’s Long Island, she joined the Marines and flew attack helicopters in Afghanistan. The first-time space traveler hopes to show Iranian girls that they, too, can aim high. “Belief in yourself is something really powerful,” she said before the flight.
Read: Webb Space Telescope reveals moment of stellar birth, dramatic close-up of 50 baby stars
Mogensen worked on oil rigs off the West African coast after getting an engineering degree. He told people puzzled by his job choice that “in the future we would need drillers in space” like Bruce Willis' character in the killer asteroid film “Armageddon." He’s convinced the rig experience led to his selection as Denmark’s first astronaut.
Furukawa spent a decade as a surgeon before making Japan’s astronaut cut. Like Mogensen, he’s visited the station before.
Borisov, a space rookie, turned to engineering after studying business. He runs a freediving school in Moscow and judges the sport, in which divers shun oxygen tanks and hold their breath underwater.
Read: China launches new crew for space station, with eye to putting astronauts on moon before 2030
One of the perks of an international crew, they noted, is the food. Among the delicacies soaring: Persian herbed stew, Danish chocolate and Japanese mackerel.
SpaceX's first-stage booster returned to Cape Canaveral several minutes after liftoff, an extra treat for the thousands of spectators gathered in the early-morning darkness. Liftoff had been delayed a day for additional data reviews of the capsule's life-support system.
Another NASA astronaut will launch to the station from Kazakhstan in mid-September under a barter agreement, along with two Russians.
SpaceX has now launched eight crews for NASA. Boeing was hired at the same time nearly a decade ago, but has yet to fly astronauts. Its crew capsule is grounded until 2024 by parachute and other issues.
Read: Green comet zooming our way, last visited 50,000 years ago
The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute’s Science and Educational Media Group. The AP is solely responsible for all content.