The Sound of The Big Bang: We Can Actually Listen To It

Table of Contents

Have you ever tuned into an FM radio station only to be met with a hissing, crackling, static noise?

Did you ever stop to wonder what causes this static, and whether it might be connected to the origins of the universe itself?

In this article, we’ll explore the mysterious origins of static noise.

What Causes the Static Noise on FM Radios?

Before diving into the connection between radio static and the Big Bang, let’s first take a look at what causes the static noises.

When you tune into an FM radio station, your radio receiver is searching for and locking onto a specific frequency.

If there’s no signal at all, the receiver will pick up on electromagnetic interference from other sources.

This interference can come from a variety of sources, including other electronic devices, power lines, lightning, and radio waves from space.

The concept of receiving noise from the CMBR applies to FM radios and all other types of radio receivers.

Here is a 30 seconds recording of the CMBR noise. Note that only part of this noise is actually CMBR, the rest is electrostatic noise from other sources as explained above.

The Cosmic Microwave Background Radiation (CMBR)

One of the radio waves from space that can contribute to the static noise on FM radios is Cosmic Microwave Background Radiation (CMBR). The CMBR is a form of electromagnetic radiation that was discovered in the 1960s and is believed to be the afterglow of the Big Bang.

It is a faint, uniform background radiation that is present in all directions of the sky and has a temperature of about 2.7 Kelvin.

How is the CMBR Related to the Big Bang?

The Big Bang is the scientific theory that explains the origin and evolution of the universe, and it happened about 13.8 billion years ago.

According to this theory, the universe started out as a hot, dense, and infinitely small point. Which rapidly expanded in a process known as cosmic inflation.

As the universe expanded, it cooled down, and eventually, matter began to form.

CMBR was created about 380,000 years after the Big Bang. After the universe had cooled down enough for electrons and protons to combine and form neutral atoms.

These atoms allowed light to travel freely through the universe, creating a snapshot of the universe at that time. This snapshot is what we see today as the CMBR.

How Does the CMBR Contribute to the Static Noise?

Radio waves from space, including the CMBR, can contribute to the static noise on FM radios.

When the radio receiver’s antenna picks up on these radio waves, it interprets them as noise.

However, the majority of the static noise is still caused by electromagnetic interference from other sources.

Wrapping up

I hope this was an interesting discovery for you as it has been for me.

Now you know that maybe, that static noise is even more important than tuning into a station.

Thanks for reading!

Cosmic microwave background – Wikipedia. Link to the source

Latest articles

The Best Deals on Cheap Dedicated Servers in Europe

Unbeatable Prices for Unmatched Performance:’s Budget-Friendly Dedicated Servers redefines the hosting landscape with a lineup of dedicated servers that seamlessly blend high-performance capabilities

Endri Bedini
Endri Bedini

Endri Bedini is a laureate in Mechanical Engineering with over 20 years of experience in various technology fields, including Electronics, IT, and Healthcare Equipment. Throughout his career, Endri has honed his skills and expertise, earning a reputation for his exceptional problem-solving abilities and innovative thinking. In addition to his work in technology, Endri has a deep interest in Science, Astronomy, AI, Psychology, Sociology, Nature, and Evolution. He is committed to staying up-to-date with the latest developments in these fields, and his insights are informed by his broad range of knowledge and interests.

Read also

Converting Flies Into Plastics

Transforming Insects into Eco-Friendly Plastics

Plastics reign supreme in the realm of pollution, primarily due to their non-biodegradable nature, persisting in the environment for centuries. The staggering volume of plastic

Receive new posts and updates at your e-mail address.

Subscription Form
Scroll to Top