A Journey to the End of the Universe
What will happen to us in the next few hundred years or even a thousand? How will the universe ultimately end? These questions have puzzled scientists and philosophers for centuries. While we cannot know for certain, we can explore the existing theories and contemplate the vastness of the universe. Imagine, if you will, that we have a time projector that allows us to witness the unfolding of the future. Let us embark on this journey together.
Let's begin by looking at our near future. In the next ten years, we will age, that much is certain. Scientific advancements will propel technology forward, and we will become part of a web even larger than the Internet.
But let's fast forward even further, to the next millennium. In a thousand years, humanity may fully embrace technology not only in their lives but also inside their bodies. The concept of cyborgs might become a reality, blurring the line between human and machine. If that seems too science fiction for you, brace yourself for an even greater revelation.
Now, let us leap forward 10,000 years. Betelgeuse, the famous red supergiant star, will explode in a supernova. This magnificent event will be visible to the naked eye, even during daylight. If humanity still exists at that time, it will be a spectacle to behold. Additionally, the natural movement of stars will cause many constellations as we know them to become unrecognizable.
Around the same period, another super bright star called VY Canis Majoris will explode in a hypernova, a far more powerful version of a supernova.
Half a million years into the future, Earth will encounter a significant challenge—a massive asteroid, about half a mile in diameter, will hurtle towards our planet from space. If humanity has not devised a way to avert this impact, it will result in widespread destruction and devastation.
Moving on to one million years from now, two of Uranus' four moons will collide, causing chaos on the planet.
Somewhere at the edge of our Solar System, a rogue star called Gliese 710 will enter the Oort Cloud, an enormous field of icy comets marking the outskirts of our system. Because of the star's presence, some of these comets may be redirected towards Earth, potentially bombarding our planet from space.
Jumping to 110 million years from now, the Sun will become 1% brighter.
Four billion years from now, the Milky Way Galaxy will collide with the Andromeda Galaxy. The supermassive black holes at their centers will approach one another and eventually merge into a hypermassive black hole, containing the mass of billions of suns. This merger will give birth to a new galaxy, possibly named Milkromeda or Andway.
Somewhere between seven to nine billion years in the future, the Sun will expand into a red giant, devouring the nearest planets, including Earth. However, this expansion is merely temporary, as the star will eventually collapse into a white dwarf. At the eight-billion-year mark, all surviving planets in our Solar System will lose heat rapidly due to the diminished size of the Sun. This cooling process will render these planets inhospitable.
After a hundred billion years, the universe will expand at such a rapid rate that galaxies will no longer be visible from one another's perspective. The universe is ceaselessly expanding, and its rate of expansion is accelerating. Some scientists assert that this expansion surpasses the speed of light, making it impossible to observe the universe's actual edge through any means available to us.
In one trillion years, new stars will cease to form. The expansion of the universe will stretch the distance between stars and galaxies to such an extent that gas clouds, the essential ingredients for the birth of new stars, will be too far apart.
One hundred trillion years into the future, the degenerate era will begin. With no fuel to sustain the formation of new stars, the universe's existing stars will fade away gradually, transforming from bright celestial objects to dim remnants. Red, blue, white, and brown dwarf stars will be all that remain. However, even these dwarfs will eventually exhaust their fuel, and space will be scattered with the dying remnants of stars. The universe will descend into darkness, with occasional collisions between brown dwarfs, leading to the temporary formation of red dwarfs.
Approximately 120 trillion years from now, Mars' moon Phobos will disintegrate due to the increased gravitational forces acting upon it. As a result, Mars will develop its own set of rings, akin to Saturn's. Meanwhile, on the edge of our Solar System, a wandering star called Gliese 710 will pass through the Oort Cloud, potentially causing comets to bombard Earth.
In 500,000 years, our planet will be struck by a massive asteroid, approximately half a mile in diameter. If humanity fails to mitigate this impact, it will result in widespread destruction.
Fast forward to 110 million years from now, when the Sun will become 1% brighter, causing climate changes on all the planets within our Solar System. This increase in the Sun's luminosity will make the planets progressively hotter, rendering them inhospitable to life.