Is there truly no sound in space?

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.

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Is there complete silence in space?

Sound does not travel at all in space. The vacuum of outer space has essentially zero air. Because sound is just vibrating air, space has no air to vibrate and therefore no sound. If you are sitting in a space ship and another space ship explodes, you would hear nothing.

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Did NASA record sound in space?

because it revisits the actual sound waves discovered in data from NASA's Chandra X-ray Observatory," NASA said in a statement. "In this new sonification of Perseus, the sound waves astronomers previously identified were extracted and made audible for the first time," NASA added.

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How do astronauts talk if there is no sound in space?

Because there is nothing out in space (like an atmosphere), the sound waves from one astronaut's whistling can't travel over to the other astronaut's ears. That's why the astronauts use radios to communicate—even if they're floating in space right next to each other!

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Can anyone hear you in space?

Sound is a mecanical wave, which means that it needs substance to travel through, such as air or water. In space, there is no air, so sound has nothing to travel through. If someone were to scream in space, the sound wouldn't even leave their mouths.

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Why is there no sound in space?

23 related questions found

Does space make noise?

In deep space, the large empty areas between stars and planets, there are no molecules to vibrate. There is no sound there.

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How loud is a black hole?

(Photo by NASA/CXC/Columbia Univ./C. Hailey et al.) For the first time in history, earthlings can hear what a black hole sounds like: a low-pitched groaning, as if a very creaky heavy door was being opened again and again.

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How did NASA hear black hole?

A new sonification turns X-ray “light echoes” from a black hole into sound. Rings of X-rays seen by NASA's Chandra and Swift observatories show the echoes. Material around a black hole can generate bursts of X-rays. The X-rays reflect off clouds of gas and dust like beams from headlights can in fog.

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What is the loudest sound in space?

The loudest sound in the universe definitely comes from black hole mergers. In this case the “sound” comes out in gravitational waves and not ordinary sound waves.

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Is there a smell in space?

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.

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Is there an ending in space?

In either case, you could never get to the end of the universe or space. Scientists now consider it unlikely the universe has an end – a region where the galaxies stop or where there would be a barrier of some kind marking the end of space.

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What is space made of?

The Universe is thought to consist of three types of substance: normal matter, 'dark matter' and 'dark energy'. Normal matter consists of the atoms that make up stars, planets, human beings and every other visible object in the Universe.

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Does the sun make a noise?

Today, we can hear the Sun's movement — all of its waves, loops and eruptions — with our own ears. This sound helps scientists study what can't be observed with the naked eye.

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Is it cold in space?

The average temperature of the universe is downright cold – right around 3 degrees above absolute zero.

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What is the biggest thing in the universe?

The biggest single entity that scientists have identified in the universe is a supercluster of galaxies called the Hercules-Corona Borealis Great Wall. It's so wide that light takes about 10 billion years to move across the entire structure.

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Can astronauts see black holes?

These dense objects have incredibly strong gravitational pulls from which nothing, including light itself, can escape. Since no light leaves a black hole, scientists cannot observe one directly.

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What can escape a black hole?

Anything outside this surface —including astronauts, rockets, or light—can escape from the black hole. But once this surface is crossed, nothing can escape, regardless of its speed, because of the strong gravitational pull toward the center of the black hole.

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What is inside a black hole?

Black holes have two parts. There is the event horizon, which you can think of as the surface, though it's simply the point where the gravity gets too strong for anything to escape. And then, at the center, is the singularity. That's the word we use to describe a point that is infinitely small and infinitely dense.

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Would a black hole be scary?

We are in absolutely no danger from black holes. They're a bit like tigers – it's a bad idea to stick your head in their mouth, but you're probably not going to meet one on your way to the shops. Unlike tigers, black holes don't hunt. They're not roaming around space eating stars and planets.

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How heavy is a black hole?

A typical stellar-class of black hole has a mass between about 3 and 10 solar masses. Supermassive black holes exist in the center of most galaxies, including our own Milky Way Galaxy. They are astonishingly heavy, with masses ranging from millions to billions of solar masses.

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What is the loudest thing on Earth?

The Krakatoa volcanic eruption: Not only did it cause serious damage to the island, the eruption of Krakatoa in 1883 created the loudest sound ever reported at 180 dB.

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Why is space infinite?

Because space isn't curved they will never meet or drift away from each other. A flat universe could be infinite: imagine a 2D piece of paper that stretches out forever.

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Why can't we hear the Sun?

By the way — the Sun does make actual sound. We just can't hear it because space is a vacuum, so the sound waves don't have a way of getting to us. But if we could hear the constant roar, it'd be pretty loud, even from here.

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How noisy is the earth?

Humans are unable to hear Earth's hum because it ranges between 2.9 and 4.5 Mhz. In general, humans can hear anything from 20 Hz to 20 kHz. So, this means that Earth's hum is about 10,000 times lower than what we are capable of hearing.

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