Read More. I'm sixteen years old. Young, yes, but I have had the shingles. It started off as a just a pain on the ribs underneath my left boob and when it started to turn into a rash about five days later, I went to my school nurse and explained. She immediately sent me home and that day I went to the doctor.
If you assume that the XDF is a typical region of outer space, you can calculate how many XDFs it would take to fill the entire night sky; itâs about 32 million. Multiply by the number of galaxies you find in the XDFâwhich is around 5,500âand thatâs how we arrive at 176 billion galaxies, at least, in the Universe.
As we learned in a previous video, there are 100 to 400 billion stars in the Milky Way and more than 100 billion galaxies in the Universe â maybe as many as 500 billion. If you multiply stars by galaxies, at the low end, you get 10 billion billion stars, or 10 sextillion stars in the Universe â a 1 followed by 22 zeros.