Four astronauts rocketed into orbit on Thursday on a space station mission that will stretch until spring, among them a Canadian whose wife will give birth while he is away.

SpaceX launched commander Jessica Watkins and her crew for Nasa after a three-week delay to fix the capsule’s leaking fuel system. Thick clouds threatened all morning to halt the countdown but in the end, the skies cleared enough to allow for a safe liftoff.

Although their stay at the International Space Station will last a long six months, the flight there promised to be the quickest yet for Elon Musk’s company: a mere eight-hour transit with an arrival well before bedtime.

With the late morning liftoff from Cape Canaveral space force station, Watkins became the first Black woman to lead a crew to orbit. A geologist who worked with Nasa’s Mars rover Curiosity a decade ago, Watkins is making her second trip to the space station following a lengthy stay in 2022.

“Thanks for an amazing ride,” Watkins radioed after reaching orbit.

The others are newcomers to space: Nasa’s Luke Delaney, a retired marine; Canada’s Joshua Kutryk, a colonel in the Royal Canadian air force; and Russia’s Sergey Teteryatnikov, a former submariner. They will replace four astronauts who have been living at the orbiting laboratory since February.

“We feel like some of the luckiest people in the world,” Kutryk said ahead of the launch.

This was the 13th crew launched by SpaceX for Nasa, not counting 2020’s test flight. All four embrace their Crew-13 designation that pays homage in their mission patch to Apollo 13. The harrowing 1970 moonshot ended with the astronauts’ safe return.

“We really wanted to honor their legacy, honor their resilience and their grit, and bring a little bit of that with us,” Watkins said. She and her crewmates rode to the pad in black Teslas bearing plates that read “Lucky 13”.

Kutryk will become the fourth man to become a father while orbiting Earth. Wife Heather is due to give birth to their third child in late November. The Canadian Space Agency promises plenty of support for the entire family when the big day comes.

“A lot of life-changing things can happen over six months,” Nasa manager Dana Weigel said on the eve of liftoff, noting that the space agency would do its best to keep Kutryk looped in to his family.

In 2004, Nasa provided a radio link between space station astronaut Mike Fincke and his wife’s delivery room during the birth of their daughter. Five years later, Randy Bresnik, commander of next year’s Artemis III mission, dialed in to his wife’s hospital from orbit.

The happy news traveled more slowly for Austrian astronaut Franz Viehböck. His daughter was born a few hours after he launched to the Soviet Union’s Mir space station in 1991. He was not informed until the next day.