I was born 0.000000047 billion years ago. True, I don’t know when my soul was born, but maybe a couple of billion years earlier :) Do you believe in the eternal existence of immaterial objects? For example

c NASA Our solar system formed 4.57 billion years ago. Since then, our Sun has been shining somewhere on the edge of the Milky Way galaxy. And our Sun will shine for about the same number of years. Today

The first stars appeared 13.7 billion years ago. And 13.3 billion years ago, many of these stars had already gone out and enriched the cosmos with chemical elements. For many billions of years, stars were

I woke up this morning and decided to write a post. A post about the very first days and minutes of our material Universe. I do not know what preceded the big bang, but I assume that it was not without

And I thought. How many years have I been walking under this sky? Over 40 years. And how long does the sky and these clouds above exist? Probably several billion years. And how long does our universe exist?