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The Loudest Sound Never Heard

Updated on December 10, 2014

Say What?


What is the loudest sound never heard?


It happened approximately 14 billion years ago and It impacted everyone on earth and happened before WWII, before ancient Rome, before ancient Egypt, before the dinosaurs, before time itself.


The Big Bang!

Photo Credit: MarcusWORD

The universe began with a massive expansion, billions and billions of years ago, and it continues to expand with every passing second. The idea that the universe, and man's very existence, began with a "Big Bang" is no longer a topic of debate among most scientists-it is essentially taken as fact.


"In the beginning..." - The big facts about the big bang

Photo Credit:
Photo Credit:

Photo Credit:

If you've ever stood in the middle of a field in the country at night you will understand that silence can be deafening. The beginning of everything must have been quiet with no sound having yet been heard.

The just like popcorn popping at that one point in the horror movie when the killer is about to strike....BANG!

What is the Big Bang?

The Big Bang is a theory came from priest Georges Lamaitre in 1927.

It theorizes that the universe started the size smaller than a pin head. Only a few millimeters across. All of this matter was very hot and very dense. Then, BANG! The universe grew from smaller than an atom to bigger than a galaxy in less than a second.

The first 380.000 years after, the heat from the Big Bang still made it to hot for light to shine. After about 300.000 years, it cooled to approximately 3000 degrees.

As it expanded and cooled, the Universe was born. Clumps of gas formed the first stars and the first galaxies.

Ok but that was billions of years ago! - What the Universe sounds like now

Photo Credit: Bell Labs
Photo Credit: Bell Labs

Photo Credit: Bell Labs

In 1965 the Holmdell Horn Radio Telescope picked up strange static all over space while attempting to find radio signals in space.

What they had discovered was essentially the Big Bang. Or to be more specific the remnants of the Big Bang called the "cosmic microwave background radiation" (the left over heat from the Big Bang).

You can hear it below:

cosmic microwave background radiation

Ok, so what now? - Putting things into perspective

Photo Credit:NASA; ESA; G. Illingworth, D. Magee, and P. Oesch, University of California, Santa Cruz; R. Bouwens, Leiden University; and the HUDF09 Team
Photo Credit:NASA; ESA; G. Illingworth, D. Magee, and P. Oesch, University of California, Santa Cruz; R. Bouwens, Leiden University; and the HUDF09 Team

Photo Credit:NASA; ESA; G. Illingworth, D. Magee, and P. Oesch, University of California, Santa Cruz; R. Bouwens, Leiden University; and the HUDF09 Team

Our solar system was born approximately 9 billion years after the Big Bang. It is about 4.6 billion years old. That's a lot of candles!

The Milky Way was formed when gravity struck and pulled material toward the center to form the sun. Gravity is also to blame for spinning the galaxy into its iconic spiral disc shape.

There are 100 billion stars in the Milky Way alone and it is approximately 25.000 light years away from the galactic core.

The NASA Hubble Deep Field telescope show that galaxies are actually still moving away from each other, the universe is still expanding. That's a really big bang! Scientist have still not seen the edge of space where everything ends.

The image above depicts an image of space from the Hubble Deep Field telescope. It contains approximately 10 000 galaxies from just one tiny patch of our sky (each dot is a galaxy that come in every shape and size).

The Universe

This is my ultimate favourite show on space. Not too complicated (for people like me, not gifted with a scientific mind) but still advanced enough for those who are.

An absolutely must see for anyone interested in space


What do you think? - leave me a note

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    • profile image


      4 years ago

      Actually there was no air at that time, nothing but GOD, Only God existed and even if it happened, it would be absolutely silent to the human ear if human ears existed at that time.

    • profile image


      5 years ago

      How interesting! I never knew that the idea of a 'big bang' birth of the universe came from a priest.

    • profile image


      5 years ago

      Welcome to Squidoo Nicole, you are off to a great start!

    • Fufurinha47 profile image


      5 years ago from Portugal

      Great lens :)

    • Elsie Hagley profile image

      Elsie Hagley 

      5 years ago from New Zealand

      Yes that would have been a load noise. You did a great job writing this article, very nice photos.

      Thanks for sharing your thought's about the loudest sound ever heard, glad i wasn't here then, don't like load noises.


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