Don't know much about it, but yeah. It's how we get people and supplies. Robin, the Lighthouse keeper, she's in charge of using it. Something about communicating with other people to aim it at the stars each month?

[Big shrug. The tablet he barely knows his way around, and only because he's had months to learn how to use it. He's used to a world full of wooden sailing ships and handwritten letters with ink. It's rare to come across anything more advanced than a camera. Portals to space? Way beyond his understanding, but he's doing his best to keep up.]

I'd say ask Robin if you want to know more, but she's not helpful at the best of times, and last we heard from her, it seemed like she wasn't in any better shape than the rest of us are.