num_pages: 40
description: XO EXOPLANET is about the planets of our solar system spotting another planet outside the systeman exoplanetand reaching out to it via letter to express their happiness that it is in the galaxy. But feelings get stepped on as the correspondence continues. Who is really the exoplanet here?
language: English
title: XO, Exoplanet
publisher: Little, Brown Books for Young Readers