*no, i’m not about to talk about the TV show, it’s a play on words, you see…*
So this is the first SCIENCE! post on my new schedule, which is every Monday. I’m going to try my best to stick to that.
Today, I come to you with an incredibly complicated, unable to be properly explained topic-the Big Bang.
Now, depending on your belief, you may think that the cause of the Big Bang was different, or maybe you don’t believe the Big Bang even happened.
So, let’s explain what this theory is all about.
The Big Bang, as said on space.com in an article by Elizabeth Howell called “What is the Big Bang Theory?”, is “the leading explanation about how the universe began. At its simplest, it talks about the universe as we know it starting with a small singularity, then inflating over the next 13.8 billion years to the cosmos that we know today” (Howell, 1).
The scientist that supposedly began this theory was Georges Lemaître, who believed that the universe had to have started at one point.
Think about it-the universe is ALWAYS expanding. Today, the universe will be larger than it was yesterday. Yesterday, the universe was bigger than it was the day before that. So, it had to start somewhere, wouldn’t you think?
However, astrophysicists haven’t been able to properly identify WHERE this point was. Or, maybe it was several points. Nobody really knows.
What sticks out about this theory is all of the following evidence, as stated by big-bang-theory.com:
- “First of all, we are reasonably certain that the universe had a beginning.
- Second, galaxies appear to be moving away from us at speeds proportional to their distance. This is called “Hubble’s Law,” named after Edwin Hubble (1889-1953) who discovered this phenomenon in 1929. This observation supports the expansion of the universe and suggests that the universe was once compacted.
- Third, if the universe was initially very, very hot as the Big Bang suggests, we should be able to find some remnant of this heat. In 1965, Radioastronomers Arno Penzias and Robert Wilson discovered a 2.725 degree Kelvin (-454.765 degree Fahrenheit, -270.425 degree Celsius) Cosmic Microwave Background radiation (CMB) which pervades the observable universe. This is thought to be the remnant which scientists were looking for. Penzias and Wilson shared in the 1978 Nobel Prize for Physics for their discovery”
Let’s take an extra look at the final bullet, because I already explained the first and second bullets previously.
BULLET #3-BIG BANG LEFTOVER RADIATION
As shown in the following picture, taken by ESA (European Space Agency)’s Planck space probe, you can see all of that Cosmic Microwave Background radiation.
As you probably were thinking, the orange/red are the hot areas, and the blue are the colder areas.
Let’s go back to Elizabeth Howell’s article. This section speaks about the beginning of the universe, and the birth of light.
“In the first second after the universe began, the surrounding temperature was about 10 billion degrees Fahrenheit (5.5 billion Celsius), according to NASA. The cosmos contained a vast array of fundamental particles such as neutrons, electrons and protons. These decayed or combined as the universe got cooler. This early soup would have been impossible to look at, because light could not carry inside of it. “The free electrons would have caused light (photons) to scatter the way sunlight scatters from the water droplets in clouds,” NASA stated. Over time, however, the free electrons met up with nuclei and created neutral atoms. This allowed light to shine through about 380,000 years after the Big Bang” (Howell, 1).
Don’t you see how the picture relates to this?
After the “big bang”, that’s supposedly when the universe began to expand. “For this inflation to have taken place, the Universe at the time of the Big Bang must have been filled with an unstable form of energy whose nature is not yet known” (science.nasa.gov, 1).
I wonder what that mysterious energy is…perhaps dark energy?
That’s yet another thing that is not quite understood by physics yet.
“It had always been assumed that the matter of the Universe would slow its rate of expansion. Mass creates gravity, gravity creates pull, the pulling must slow the expansion. But supernovae observations showed that the expansion of the Universe, rather than slowing, is accelerating. Something, not like matter and not like ordinary energy, is pushing the galaxies apart. This “stuff” has been dubbed dark energy…” (science.nasa.gov, 1).
(see, part of the reason I cite a lot of text is because i’m very very very very far from being an astrophysicist, this just interests me…)
Read these articles, they explain this much better than me, I really just cite them…
Even though they are very confusing, it’s really interesting, I recommend.
NOW FOR OTHER PEOPLE’S POINTS OF VIEW:
Well, that’s quite controversial. Basically, religion explains that some kind of higher entity controlled this and made it happen. That’s about as far as I should go with that.
But then you have the law of energy…
“Energy cannot be created nor destroyed”
This has some astrophysicists going “THEN WHAT?”
Then you have HOW the explosion happened when nothing was there to explode…
(as inspired by a debate.org user, “Freakimaninja235” on the “Did the big bang happen” debate here: http://www.debate.org/opinions/did-the-big-bang-happen)
Also, this isn’t the only theory to the start of the universe, it’s just the most popular.
Main idea here, as most of these posts: THERE IS NO CLEAR ANSWER YET.
But I must ask of your opinion: Do you think the Big Bang happened, or it’s just a baloney sandwich??? If you think that, do comment what you do believe. I’m interested to hear other people’s opinions on this.
That being said, I hope you enjoyed this very confusing post.
So much Science and research, and all of this is still left hanging in the air. It’s insane.
Have wonderful lives, biscuits.
*insert Sheldon meme here*