KENNEDY SPACE CENTER, Fla. — Bad weather has postponed Wednesday's first launch of NASA astronauts from Florida in nine years.
The next attempt will be Saturday at 3:22 p.m.
The launch was scheduled for 4:33 p.m. but called off with less than 17 minutes to go in the countdown because of the danger of lightning.
The historic mission is a collaboration between NASA and Elon Musk's SpaceX.
Veteran astronauts Bob Behnken and Doug Hurley are set to take the Crew Dragon spacecraft on its first manned and final test flight to the International Space Station. The U.S. has been paying Russia to fly personnel there since the termination of its shuttle program in 2011.
"We hoped to be flying people by 2014," said Scott Altman, a former NASA astronaut. "It's now 2020 and we're only on the cusp, but we are here."
Altman said a successful flight could be a giant leap forward for the future of American space travel. He and others hoped the public-private partnership would help pave the way for the commercial sector to soon handle more routine missions. NASA could then be free to focus on shooting for the stars.
"NASA looking to do the deep space exploration, get things set so we can go back to the moon," Altman said. "Commercial crews then filling in the low-Earth orbit."
Success might also be a boon for the Sunshine State. Advocacy group Space Florida believed the mission would further encourage private investment in the Space Coast, bringing in more companies, jobs and opportunities.
"We're looking at making Florida the primary port of entry for human and economic opportunity in the Solar System," said Dale Ketcham, Space Florida's vice president of government and external affairs. "It's roughly analogous to the Port of London in the British Empire."
The astronauts plan to dock with the ISS and remain there for an indeterminate period. Officials said Behnken and Hurley would likely return when weather permitted.
Pending a successful final test, the first full crew launch of the Crew Dragon craft is slated for August.