The program has been a great success, according to Smart Machines spokesman Robert Frost Frost says, "What is interesting to me is the children's reaction to Bill."
Toward the top (northern) end of the image, the ice becomes sparser, but the walls of a large impact crater in the upper-left corner provide a refuge for an oblong ice deposit on the crater floor.
So the need to quickly recognise things that could be helpful or harmful could have had a great influence on rock art and explain why some images are more common across cultures than others.
The Sun is the hub of a huge rotating system consisting of nine planets, their satellites, and numerous small bodies, including asteroids, comets, and meteoroids.
The large area of the sky in the paintings, the soulful composition, and seemingly simple brushstrokes are in fact expressions of the essence of life that is the pursuit of freedom.