I WONDER - Where Does The Word Astronaut Come From?

The video explains the origin of the word 'astronaut' from Greek, meaning 'star sailor'. It also covers the terms 'cosmonaut' and 'taconaut', which refer to Russian and Chinese astronauts, respectively. Finally, it lists the agencies responsible for training astronauts, including NASA, ESA, CSA, and JAXA.

What is the meaning of the term taconaut?

Which space agencies train astronauts?