Physics Unit 1 Article Summary

              Up until now the universe was thought to be flat shaped or infinite. New research that involves measuring the amount of energy left over from the big bang has left us to believe the universe is saddle shaped. By measuring the temperature from different parts of the sky, scientists can estimate how the universe is shaped. This is because the Big Bang left a cosmic microwave background (thermal wave) that effects the earth in different ways. On one side of the earth the temperatures of the sky are effected as much as 10% causing the hot spots to be hotter and the cold spots to be colder. This leads us to believe that the universe is favored in one direction. That would prove that our universe is not flat, but rather an open universe shaped like a saddle. It could how ever appear to be flat, but have a curvature of less than 1 percent. Another theory is that our universe is an ever expanding bubble. Their may be other universes expanding but our universe would never come in contact with them.