“Because there is a law such as gravity, the Universe can and will create itself from nothing. Spontaneous creation is the reason there is something rather than nothing, why the Universe exists, why we exist… It is not necessary to invoke God to light the blue touch paper and set the Universe going.” – Stephen Hawking
The blue and green splodgy oval is meant to represent the universe, officially it is “The Cosmic Microwave Background temperature fluctuations from the 7-year Wilkinson Microwave Anisotropy Probe data seen over the full sky.” !!!
It is about the best representation of the universe I could think of and also is the image used by wiki under it’s page for the Universe , so if it’s good enough for them…!