Retired astronaut Peggy Whitson, America's most experienced space flier, and rookie crewmates from India, Poland and Hungary blasted off on a privately-financed flight to the space station.

More: Is there life on Mars?This Iowa astronaut thinks so — and she wants to find it. From the moment she walked into the Johnson Space Center in Houston, Whitson’s goal was to be in orbit.

Peggy Whitson, a retired NASA astronaut, is on her way back to the International Space Station for the fifth time as part of SpaceX Axiom Mission 4.

Retired astronaut Peggy Whitson, America's most experienced space flier, and rookie crewmates from India, Poland and Hungary blasted off on a privately-financed flight to the space station.

More: Is there life on Mars?This Iowa astronaut thinks so — and she wants to find it. From the moment she walked into the Johnson Space Center in Houston, Whitson’s goal was to be in orbit.

Retired astronaut Peggy Whitson, America's most experienced space flier, and rookie crewmates from India, Poland and Hungary blasted off on a privately-financed flight to the space station.

Peggy Whitson, a former NASA astronaut turned private space voyager, led a multinational crew on a mission from the ISS back ...

Retired astronaut Peggy Whitson, America's most experienced space flier, and rookie crewmates from India, Poland and Hungary blasted off on a privately-financed flight to the space station.