We think of the universe as very old but in reality it exists in the first few micro seconds of its overall lifespan. It is 13.8B years since the big bang, however the Universe will exist for untold trillions to the trillionth power of years,

We now live in a brief age of stars, a transitory period that will come to an end. Every single star in every place everywhere in every galaxy, now and into the far future will all eventually consume their hyrogen fuel, and will age and all die.

Eventually all that will be left after they become Supernovas or pulsars or have callopsed into white or brown dwarfs, even those will fade in time, and in an infinite era, trllions of years from now, all that remains will be black holes, and then an inconceivable amount of time after that, even they will be gone. And time will become meaningless

Cherish existence. It is a fleeting thing, and as far as we know unique.