I just watched the music video of a well-known artist, Katy Perry. And it's titled; "Electric". I am not really a fan of Katy Perry, I mean yeah, her songs and voice are nice, but something that made me appreciate the music video is 3 important factors for me:
Positivity
Pokemon
And Time Travel
If you haven't watched it yet; you could check the video Electric, and if you are like me, you would definitely love it as well.
It made me focused my thoughts on "Time Traveling". It may sound farfetched, but the idea of time travel has been discussed by many people. Even Stephen Hawking said that one way to avoid the effects of black holes on space-time is to escape to a different point in space-time. But if humans could go back in time, would we have already done it? Well, according to a study published by the Journal of Cosmology and Astroparticle Physics, we may have already gone around back in time!
I'm sure you're curious about this blog post so let me tell you more!
This article explores how our current model for cosmic evolution is being challenged. In this post, I'll cover the basics of cosmology and how it came to be known as the "Big Bang". Then I'll move into my area of expertise, the beginning of the universe.
Back Beyond The Big Bang
Today's view of the universe comes from experiments performed in particle accelerators that try to simulate conditions near the time of creation. The earliest measurements are almost 15 billion years old but are consistent with an origin sometime after 13.7 billion years ago (13 billion + .7 billion years ago). In other words, we know that there is a lot more space to look at and many different kinds of galaxies can be detected from billions of light-years away. We also know that almost every galaxy beyond our own Milky Way is moving away from us at very fast speeds. Every day, the space between all of these galaxies grows wider and further away. Scientists found this out by measuring the light spectrum emitted from stars in different galaxies and were able to determine their relative distances from us by looking at how much redshift there was in their spectra.
What I love about the universe is how it all works so cohesively together. Galaxies are separated by vast expanses of space but everything is still connected through the force of gravity (which makes my artwork here feel really awesome). We know that the space between galaxies is growing at an accelerated pace and that our universe is expanding more than ever.
Anyways, back to the original topic, this idea of a Big Bang is actually a very recent discovery in history. Back in 1927, Edwin Hubble discovered the expansion of our universe by analyzing the light emitted by distant galaxies. He found out that these galaxies are moving away from us at very high speeds. When you look out into space, it's like making a movie and slowing it down from frame to frame, where you could see individual stars come into view and disappear behind the horizon over time.
The only problem with this model of the universe is that if we wait long enough we need to be patient to see it all play out in front of us. To solve this problem, scientists use the Scientific Method to explain things. It involves observation, hypothesis, experimentation, and conclusion. Nowadays scientists have only been able to observe the expansion of our universe over a very small period (when light coming from distant galaxies was redshifted into shorter wavelengths), but they haven't been able to gather enough information about how time works before or after that initial Big Bang. In other words; everything has been on a very small scale and as such we have not yet been able to witness any beginning or end.
When we look out into deep space, what we are seeing in the past. The universe has traveled a great distance to reach us and in order to see it all from beginning to end, we want to keep looking further and further back through time. However, it's obvious that our instruments aren't powerful enough yet. We have been able to detect many different wavelengths of light but none directly from the Big Bang. So how do scientists know what happened 13 billion years ago when they can't even detect any light from it?
The answer is simple, they use other telescopes to detect different types of cosmic radiation (radio waves, x-rays and etc) besides visible light. When we gather all of these pieces of information together, such as the redshift in a distant galaxy's light spectrum and the temperature of an object we've been observing, it can be used to reconstruct what happened in the early universe.
Big Bang Cosmology
Cosmology is a branch of science that deals with the origin, evolution, and eventual fate of our universe. It explores questions such as "How did everything begin?" Does time have a beginning? Does the universe have an edge or is it infinite? Are there other universes out there? Here you will learn about the latest theories on how our universe began, what existed before that time, and where it is going from here. Cosmology is constantly in flux and new discoveries are being made all the time. Being able to understand what has happened in the past will be key to our understanding of the future. There is also a lot of disagreement among scientists on different points that are debated in cosmology. But I think that as a whole, I believe cosmology will continue to grow and develop for many years to come. The core principles of our universe, such as the Big Bang, have been proven to be true and scientific predictions have been coming to fruition over time. Cosmologists have discovered evidence of the universe's expansion at almost every point along the timeline, as well as what we call dark matter and dark energy (which make up 80% of our universe). It's thought that the universe is expanding at an accelerating rate which can be seen by the way galaxies are moving away from each other. Cosmologists have also noticed a "cosmic acceleration." This implies that there is more to our universe than meets the eye and that there exists a lot of unknown material out in space.
How is this related to Time Traveling?
Well, this is where things become tricky. Cosmology and relativity are two different things. Cosmology attempts to answer questions regarding the origins, evolution, and ultimate fate of our universe. But as everyone knows, the Big Bang Theory is a theory that was created by Albert Einstein in 1917 and has been tested and confirmed to be true by scientists ever since. It's not something created by scientists but rather something they have observed using more than 10 different types of telescopes from all around the world. This tells us that cosmology is actually science at work and there's a very good possibility that we'll be able to travel back in time if we were able to determine when in the universe's timeline it happened.
In Conclusion
Yes, it's true that believing in a theory such as time travel is a bit of a leap of faith. But I think this is the furthest thing from wrong. I look forward to getting more information on what has happened back in time and where it all began. This will be crucial to learn about what our future might look like if we survive into the future. In the end, we're all just one step away from absolutely anything and everything. We can travel through time and potentially live out other versions of our lives that lead us to become completely different people from who we are now.
IMAGE REFERENCE:
https://anomalien.com/the-time-traveling-thief-sean-davies-story/
