Hey my mom makes lasagna all the time and we freeze the leftovers. It will last a good two weeks in the freezer. My advice is to take it out of the fridge and stick it in the freezer. Lasagna is always better the day after it was made, i.e. as leftovers.
Thus, the part of the Universe we can observe (the Visible Universe) lies within a sphere with a radius of 13.7 billion light years centered around the Earth. 1  We can only observe 13.7 billion light years of the Universe. 2  We are only able to see the parts of the Universe whose light has had time to reach us.
God's power in Numbers. The Milky Way galaxy we live in roughly contains 100 billion stars. Astronomers have also estimated that the number of galaxies in the observable universe is 200 BILLION! The current diameter of the observable area is about 93 BILLION light years. The width of the ENTIRE universe (the parts we can and cannot see) is bigger still. In comparison, the width of a typical galaxy is only 30,000 light-years.