@rkkn Actually...it kinda doesn't -really- have a protagonist. Like it has someone that looks like one but as the story progresses you start to realize the 'protagonist' is more like the desire to learn. Who ever wants to learn the most at that that point in the story tends to be who it focuses on.
Don't you think the Earth looks like she could use a hug?
Well, now you can give her one! This, and other planet-related gift ideas, brought to you courtesy of the Planetary Society.
You can get Mars and the Moon too. But I don't want to hug the Moon. By the way, this is totally on-topic, honest.