Rough weather at the crew's splashdown location is delaying their return from the International Orbit Station this week.
Wrapping up a nearly six-month stay in space.
The SpaceX Crew Dragon spacecraft carrying NASA's Kjell Lindgren, Bob Hines, and Jessica Watkins, and the European Space Agency's.
Italian astronaut Samantha Cristoforetti was set to launch from the International Space Station on Thursday morning.
Due to adverse weather conditions on Earth, NASA was had to cancel the launch.
NASA and SpaceX are planning for the Crew Dragon's launch to occur on Friday at 11:35 a.m. ET.