Is traveling a big deal when your an astronomer?
What do you mean?
I hadn't been overseas before I started my PhD. Now I have been to Mexico, Canada, India and the US. Astronomers from Australia generally go overseas to work once the have finished their PhD. I am certainly planning to use it to see more of the world (and the Universe).
My astronomy professor last September missed time on three separate occasions during the semester to go to Hawaii!
The best telescopes are in remote locations. Also, due to different views of the sky (and limited resources), astronomers often coordinate with others located across the globe.
Separate names with a comma.