Why is space so silent? (2023)

Why is it completely silent in space?

This is because sound travels through the vibration of particles, and space is a vacuum. On Earth, sound mainly travels to your ears by way of vibrating air molecules, but in near-empty regions of space there are no (or very, very few) particles to vibrate – so no sound.

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Is space really silent?

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.

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Is it dead silent in space?

OK so wait, is space completely silent or not? While space is more silent than you could ever imagine, it's not completely devoid of sound. Sound waves cannot travel through space, but there are some infinitesimally small regions where sound can exist, under very specific conditions.

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What does space smell like?

Astronaut Thomas Jones said it "carries a distinct odor of ozone, a faint acrid smell…a little like gunpowder, sulfurous." Tony Antonelli, another space-walker, said space "definitely has a smell that's different than anything else." A gentleman named Don Pettit was a bit more verbose on the topic: "Each time, when I ...

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Can you play music in space?

Sound waves need to travel through air to produce a sound. As there is air on a spacecraft, musical instruments should still work. However, it might not work if you try to play outside of a shuttle or space station. On a violin or guitar, the strings would vibrate without producing a sound.

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Is space completely dark?

Above the Earth's atmosphere, outer space dims even further, fading to an inky pitch-black. And yet even there, space isn't absolutely black. The universe has a suffused feeble glimmer from innumerable distant stars and galaxies. This artist's illustration shows NASA's New Horizons spacecraft in the outer solar system.

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What breaks silence of space?

The silence of space was broken by a sudden roaring sound of the river. Was this answer helpful?

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Is it true that in space no one can hear you scream?

And it does indeed appear to be the case the no one can hear you scream in space, as by the time the device's launch balloon burst at 33 kilometres above the Earth – the altitude at which there is only about 3/1000th of the amount of air press as at ground level – the screams, which were initially loud at ground level ...

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Can you hear someone yell 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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Is the space infinite?

There's a limit to how much of the universe we can see. The observable universe is finite in that it hasn't existed forever. It extends 46 billion light years in every direction from us. (While our universe is 13.8 billion years old, the observable universe reaches further since the universe is expanding).

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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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Would a body decompose in space?

In space we can assume that there would be no external organisms such as insects and fungi to break down the body, but we still carry plenty of bacteria with us. Left unchecked, these would rapidly multiply and cause putrefaction of a corpse on board the shuttle or the ISS.

Why is space so silent? (2023)
Does space have a end?

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. But nobody knows for sure.

What color is space?

If we add up all the light coming from galaxies (and the stars within them), and from all the clouds of gas and dust in the Universe, we'd end up with a colour very close to white, but actually a little bit 'beige'.

Do we age faster in space?

Scientists have recently observed for the first time that, on an epigenetic level, astronauts age more slowly during long-term simulated space travel than they would have if their feet had been planted on Planet Earth.

Can there be fires in space?

Fires can't start in space itself because there is no oxygen – or indeed anything else – in a vacuum. Yet inside the confines of spacecraft, and freed from gravity, flames behave in strange and beautiful ways. They burn at cooler temperatures, in unfamiliar shapes and are powered by unusual chemistry.

Can you talk in space?

When astronauts are out in space, they can whistle, talk, or even yell inside their own spacesuit, but the other astronauts would not hear the noise. In fact, the middle of space is very quiet. Sound travels in waves, and it moves at different speeds through air or water or other materials.

What is the darkest thing in space?

Black holes are the darkest things in our universe because they emit no light whatsoever in any wavelength.

Is the sky really blue?

Blue light is scattered in all directions by the tiny molecules of air in Earth's atmosphere. Blue is scattered more than other colors because it travels as shorter, smaller waves. This is why we see a blue sky most of the time. Closer to the horizon, the sky fades to a lighter blue or white.

Why can't you see the sun in space?

In space or on the Moon there is no atmosphere to scatter light. The light from the sun travels a straight line without scattering and all the colors stay together.

Why did the silence need a spacesuit?

A spacesuit was the instrument used by the Kovarian Chapter of the Silence to bring about what appeared to be the Eleventh Doctor's death on 22 April, 2011. Capable of operating on its own, it was worn by River Song, who was forced by the Silence into murdering the Doctor as was recorded in history.

What is the silence riddle?

86. Riddle: What is so fragile that saying its name breaks it? Answer: Silence.

What does breaking silence mean?

If someone breaks their silence about something, they talk about something that they have not talked about before or for a long time.

Is there still a flag on the Moon?

Images taken by the Lunar Reconnaissance Orbiter (LRO) have shown that the American flags left on the Moon by Apollo astronauts are still standing– except for the Apollo 11 mission, which Buzz Aldrin reported as being knocked over by engine exhaust as Apollo 11 lifted off.

What would happen if the human body was exposed to space?

The environment of space is lethal without appropriate protection: the greatest threat in the vacuum of space derives from the lack of oxygen and pressure, although temperature and radiation also pose risks. The effects of space exposure can result in ebullism, hypoxia, hypocapnia, and decompression sickness.

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