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.
These twisted galaxies range from a billion to a trillion times as massive as the sun. The visible disk can be anywhere from 10 to 300 thousand light-years across. The largest known spiral galaxy is NGC 6872, which is 522,000 light-years across from the tips of its outstretched spiral arms, about 5 times the size of the Milky Way. In the early universe, galaxies frequently collided and interacted with one another, so the spiral shape of these ancient giants would have been quickly disrupted.