In the black recesses of space, there is no water for you to drink, and there is no air for you to breath. For all intents and purposes, there is nothing. Space is a virtual vacuum. Since there isn’t anything to conduct sound waves in space (there’s nothing to transfer the sound vibrations from the source to your ear), many people assume that sound does not exist in the vastness of the cosmos. But there is sound in space.
Typically, sound waves are mechanical waves. In other words, they are an oscillation (vibration) of matter that transfers energy through a medium. When sound is produced, it is because something is vibrating (like a vocal cord), and this something hits the air next to it in a particular way, which causes all the other air particles to bump together in a particular way, and—Presto!—you have sound. On the other hand, light waves are examples of electromagnetic waves. However, sound can be found as electromagnetic vibrations, as there are electromagnetic waves that pulsate at the same wavelength as the sound waves that we can hear. Here’s where NASA comes in.
The space agency used instruments on several probes (like Voyager and HAWKEYE) to record these waves. Then they put them together into a recording of a sound for all of us to hear. The result is a sound that is (frighteningly) akin to what you would expect to hear echoing as you sink into a black abyss.
So take a moment, and hear what our solar system really sounds like. It is a great video for anyone who ever wondered what space sounds like...
Sound cannot travel through space, thanks to the lack of air to act as a medium. Instead, NASA has produced musical tones from the same telescope data that is manifested into pictures such that you can now hear the beauty of space.
While it's usually thought that there is no sound in space, because space is a vacuum, this is not entirely true: a 'galaxy cluster', apparently (a group of galaxies bound closely together by gravity), 'has so much gas that we've picked up actual sound' – from a black hole at the centre of the Perseus galaxy cluster, ...
No, you cannot hear any sounds in near-empty regions of space. Sound travels through the vibration of atoms and molecules in a medium (such as air or water). In space, where there is no air, sound has no way to travel.
The planetary sounds we hear, are wavelike vibrations of air molecules occurring within the range of frequencies to which our ears are sensitive, according to the BBC .
Space isn't silent. It's abuzz with charged particles that — with the right tools — we can hear. Which is exactly what NASA scientists with the Van Allen Probes mission are doing.
Through data sonification, the same digital data that gets translated into images is transformed into sound. Elements of the image, like brightness and position, are assigned pitches and volumes. No sound can travel in space, but sonifications provide a new way of experiencing and conceptualizing data.
Pressure waves sent by the black hole caused ripples in the cluster's hot gas. Those can be translated into note. In fact, a galaxy cluster has so much gas that scientists picked up actual sound which is amplified and mixed with other data, to hear a black hole.
We can't smell space directly, because our noses don't work in a vacuum. But astronauts aboard the ISS have reported that they notice a metallic aroma – like the smell of welding fumes – on the surface of their spacesuits once the airlock has re-pressurised.
The baseline temperature of outer space is 2.7 kelvins — minus 454.81 degrees Fahrenheit, or minus 270.45 degrees Celsius — meaning it is barely above absolute zero, the point at which molecular motion stops. But this temperature is not constant throughout the solar system.
One of the most powerful sounds in the universe is caused by black holes colliding. When two massive black holes merge, they produce a gravitational wave that can generate sound waves with intensities reaching up to 1100 decibels.
Sound is carried by atoms and molecules. In space, with no atoms or molecules to carry a sound wave, there's no sound. There's nothing to get in sound's way out in space, but there's nothing to carry it, so it doesn't travel at all. No sound also means no echo.
The actual sound is inaudible, this vibration is too low to be heard by human ears. NASA had to speed it way up for you to hear it. It is more like a deep rumble, so deep you can't hear it.
This recording was made by the SuperCam instrument on NASA's Perseverance Mars rover on Feb.19, 2021, just about 18 hours after landing on the mission's first sol or Martian day.
One of the most powerful sounds in the universe is caused by black holes colliding. When two massive black holes merge, they produce a gravitational wave that can generate sound waves with intensities reaching up to 1100 decibels.
What's causing mysterious bursts of radio waves from deep space? Astronomers may be a step closer to providing one answer to that question. Two NASA X-ray telescopes recently observed one such event – known as a fast radio burst – mere minutes before and after it occurred.
It's true that the Apollo 10 astronauts heard strange whistling sounds that, at the time, they described as "outer-space-type music." But there's a very simple, nonalien explanation for what the crewmembers were hearing, and it's been public knowledge since the 1970s.
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