Science in space
Samantha has been on the International Space Station (ISS) with her crewmates, Anton Shkaplerov and Terry Virts, the commander of Expedition 43.
The ISS offers three state-of-the-art laboratories where research and experiments can be done without gravity.
Samantha's work in space is devoted to science and maintaining the weightless research centre.
It's definitely not the worst job in the universe!