Billions of years before even Earth was formed, there was a great event: The creation of the Universe. Some say that a deity created it, while others elaborate on how the Universe has been and will always be eternal, and it was never truly created. However, the most scientifically accepted theory is the Big Bang, which many, if not most people have heard of. The Big Bang theory speaks of how the universe began as a singularity infinitely small, with its creation being debatable. Due to unknown events, this speck expanded with unimaginable force, with its growth being faster than the speed of light. The event created energy and matter as we know it, but in the beginning, the existing universe was only a particle soup. This is also the only known event to have ever defied physics, since nothing can travel faster than the speed of light, and matter and energy cannot be created.
Many people fail to realize that our very existence is a gift. Compared to the Universe's life, the time humanity has is about as lengthy as a baby's first breath. Therefore, we are unbelievably lucky to be alive, let alone right now. But what allowed us to be where we are today? Million upon millions of years after the big bang, stars and the dust they created formed galaxies via gravity, including our home galaxy, the Milky Way. A certain nebula located in the Milky Way's Orion Arm formed the sun via gravity, and dust around the infant sun coalesced into the planets and astroids. This entire process took roughly 100 million years.
I've talked about the formation of our home, but what about our future? After humanity has disappeared, what will become of the Universe? Unfortunately, humans are very self-centered, and since we have proven time and time again that we have not much regard for our planet, we will likely kill Earth, a theory that has been proven by countless scientists. Hopefully, by then, we will have figured out a way to create another home for ourselves. After humanity has perished, due to one disaster or another, the Universe will still function just fine; it has no need for humanity, or anything really. After trillions of trillions of trillions of years, the Universe will reach a point of absolute nothingness; black holes will have evaporated, and everything that has happened before that age will have been meaningless.