The Galaxy Boys and The Sphere
Four young brothers had no idea they were boys of the galaxy, living in an orphanage or about events outside planet Earth - now racing towards them in the heavens. This would change their understanding of reality, then their lives.
They learn how to pilot spaceships, discover there is an evil that will chase them to the far riches of the galaxy to retrieve what was lost. If the brothers stick together, they're likely to make it through this adventure. But sticking together in the incredibly vast galaxy may not be possible, or practical.