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.
Scientists know that the universe is expanding. Thus, while scientists might see a spot that lay 13.8 billion light-years from Earth at the time of the Big Bang, the universe has continued to expand over its lifetime.Today, that same spot is 46 billion light-years away, making the diameter of the observable universe a sphere around 92 billion light-years.[ VIDEO: Oldest Light in the Universe: How it Traveled to Us ]. Centering a sphere on Earth's location in space might seem to put mankind in the center of the universe.oday, that same spot is 46 billion light-years away, making the diameter of the observable universe a sphere around 92 billion light-years. [ VIDEO: Oldest Light in the Universe: How it Traveled to Us ].