A pleasure of long distant travel is the time to dedicate to reading. A good novel while sitting in the middle seats of long flight makes the experience a bit more tolerable. I very much enjoyed the novel All the Light We Cannot See by Anthony Doerr.
The title is in reference to the electromagnetic spectrum. The story takes place in the run up and though WWII.
There was a line in the book that was used twice that in a way reminded me of my own science experience: "A scientist's work is determined by two things: his interests and those of his time".