The term "space traveller" is a widely used phrase to describe someone who travels outside of Earth's atmosphere. However, there are many synonyms that can be used to describe this profession. Astronaut, cosmonaut, and taikonaut are all terms used to describe space travellers from different countries. Space explorer is another synonym that encompasses the idea of seeking out and discovering new frontiers in space. Additionally, the term spationaut has been proposed as a gender-neutral alternative to astronaut and cosmonaut. Regardless of the synonym used, the role of space traveller is an exciting and important one for the continued exploration and understanding of our universe.