Yes.

[No bones about it, he's been out and about on three alien worlds!]

I was able to take notes on the experiences, if you wish to peruse them?

[Though for Webmind, 'notes' may seem like a mini-textbook.]

It would have been four - during my first month here, we landed on two worlds, but the first trip was cut rather short when an unprecedented threat made the train retreat in a hurry, pulling us back on board.

Later information implied that that world was destroyed by creatures we do not understand.