The discovery of a liquid oxygen leak from one of the boosters has delayed what would be Peggy Whitson's fifth trip into space. A new launch date isn't yet available.

With nearly four decades of experience in space exploration, Dr Peggy Whitson is one of the most accomplished astronauts in history, holding multiple records.

Peggy Whitson has spent nearly two years of her life in space as an Axiom Space employee and former NASA astronaut.