The light is stuck, never leaving the ball. There are other, colder balls circling the light. Taking a step back you'd notice how their really just a particle of dust in the wind compared to the darkness that engulfs them.
how big is it? We will never know but it is made apparent that there does need to be more life than that of the species back at home.
Where am I, you might ask? Who am I? Well my name is S.I.D. I was created as a Space Investigator Droid and my purpose is to find life, other than that on Earth.
My pod is white and very technical, I have been programmed with the knowledge of every button and every discovery made. They put me on here, to stare at the beautiful stars to find life 30 years ago, now it's 2050 and we still haven't found the sistering solar system to our own.