A MIND-EXPANDING EXPERIENCE
What a mind-expanding experience learning about black and white holes, the Fornax cluster and our galaxy, the Milky Way, etc. I never knew that the Milky Way is part of the Local cluster containing 54 other galaxies. I never knew that galaxies like to live in clusters, and that outside the Local cluster, or Local Group, were other clusters of galaxies. I knew that there were other galaxies in the Universe, but I never thought about them.
Our sun is one of 100 billion stars in the Milky way. The other galaxies in “our cluster” also have at least 100 billion stars, perhaps more. Then there are 58 galaxies in the Fornax Cluster, and 200 galaxies in the Eridanus Cluster which are neighbors to the Local Group. Each one of these galaxies has about 100 billion stars (or more) with their own solar systems just like the sun. Of course all are separated by millions and millions and millions of light-years. (A light-year is the distance light travels in one year – about 6 trillion miles or 9.4 trillion kilometers.)
Wow! Trying to comprehend the numbers of stars, galaxies and their distances made me awestruck and still makes me awestruck. Astronomers estimate that there are between 100 to 200 billion galaxies in the observable universe. Wow, again!
I came across this information yesterday while looking for ideas for my other blog Funny Bone Technician. “White Holes Matter” popped into my mind as a title. I had never heard of white holes as opposed to black holes. Oh what a journey of discovery once I searched “white holes” on the Internet.
By the way, the Milky Way and the Andromeda Galaxy are heading towards each other. That will be the end of us once they collide. Some scientists say that they will collide in 5 billion years; some scientists say they will collide in 4 billion years, and some say they will collide in 3.75 billion years. Whichever the case, it’s still safe for me to buy green bananas for now.