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.
When you see the sky in microwaves, it does indeed glow in all directions. Thatâs the Cosmic Microwave Background Radiation, shining behind all those galaxies. It turns out the Universe has 10 times more galaxies than previously estimated â 2 trillion galaxies. Not 10 times the stars or mass, those numbers have stayed the same. And, once James Webb launches, those numbers will be fine-tuned again to be even more precise. 1.5 trillion? 3.4 trillion?