After several postponed launches, Axiom Space's four private astronauts are finally on their way to the International Space Station (ISS). The multinational crew lifted off successfully aboard a SpaceX Dragon launched by a Falcon 9 rocket from NASA's Kennedy Space Center's Launch Complex 39A in Florida early Wednesday at 2:31 a.

A Russia-controlled module on the space station has been leaking for years. Now, operators are working to figure out if the issue is affecting the entire station.

The two-week mission, chartered by Houston-based Axiom Space, is the fourth privately financed flight to the International Space Station.