The Axiom Mission 4 launch sent an international crew to the ISS, advancing commercial spaceflight and preparing for the future of private space stations.

After a series of delays from weather to rocket engines to a leak on the International Space Station, NASA has cleared the way for SpaceX to launch the Axiom Space Ax-4 crew on the Space Coast.

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.