Can Sound Travel Through The Sun?

Sound waves travel inside of the Sun

. When they strike the surface, sound waves bounce back inside, like in the picture shown above. By looking at the movement of the surface when the sound waves bounce, scientists can learn about the temperature, density, and even the motions inside the Sun.

How loud is the Sun if we could hear it?

But if we could hear the constant roar, it'd be pretty loud, even from here. One heliophysicist crunched the numbers and estimates the noise would be around

110 decibels

, or about the same volume as speakers at a rock concert.

Do we see the Sun 8 minutes later?

The Sun is about 150 million km away, so

we see it as it was about 8 minutes ago

. Even our nearest planetary neighbours, Venus and Mars, are tens of millions of kilometres away, so we see them as they were minutes ago.

Why is the Sun yell?

Since radio waves travel at the speed of light,

the screams could give forewarning of an impending radio, or radiation, storm

. “We can use a CME's radio noise to give warning that it is generating a radiation storm that will hit us soon,” Gopalswamy said.

How long would it take to travel across the Sun?

The sun has a circumference of 2.72 million miles, and it takes on average 20 minutes to walk a mile. This means it would take 53.4 million minutes to walk around the sun, or

101.598 years

.

What happens every 22 years on the Sun?

The 11-year sunspot cycle is actually half of a longer, 22-year cycle of solar activity.

Each time the sunspot count rises and falls, the magnetic field of the Sun associated with sunspots reverses polarity; the orientation of magnetic fields in the Sun's northern and southern hemispheres switch

.

Is it completely dark in space?

How dark does space get? If you get away from city lights and look up, the sky between the stars appears very dark indeed. 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

.

Why is there no sun in space?

Because space is a near-perfect vacuum — meaning it has exceedingly few particles — there's virtually nothing in the space between stars and planets to scatter light to our eyes

. And with no light reaching the eyes, they see black.

Can we look at sun with naked eye?

REMEMBER:

Looking directly at the sun, even when it is partially covered by the moon, can cause serious eye damage or blindness

. NEVER look at a partial solar eclipse without proper eye protection.

How many Earths can fit in the Sun?

It holds 99.8% of the solar system's mass and is roughly 109 times the diameter of the Earth —

about one million Earths

could fit inside the sun.

How far back in time can we see?

In a non-expanding Universe, as we covered earlier, the maximum distance we can observe is twice the age of the Universe in light years:

27.6 billion light years

.

What is the loudest thing in the universe?

The

1883 Krakatoa volcano eruption

was the loudest sound recorded on Earth, but there are much louder sounds in space, even though we technically can't hear them.

Do black holes make sound?

Some produce relatively high pitches, because of the intensity of the gravitational waves, while others have a low bass rumbling

. Some even make the sound of a wobbling top as the two black holes swirl around each other, before eventually meeting and becoming totally absorbed into one another.

Is there noise in space?

Space is a vacuum — so

it generally doesn't carry sound waves like air does here on Earth

(though some sounds do exist in outer space, we just can't hear them).

Does the Earth make a sound?

Behold:

the native sound of the Earth

. But the terrestrial hum is virtually silent. The planet's vibration, or record of “free oscillations,” hovers between 2.9 and 4.5 millihertz. That's a frequency 10,000 times lower than what humans can pick up; our hearing threshold starts around 20 hertz.

Is the Earth loud?

But there's a limit to how loud a sound can get. At some point, the fluctuations in air pressure are so large that the low pressure regions hit zero pressure—a vacuum—and you can't get any lower than that. This limit happens to be

about 194 decibels for a sound in Earth's atmosphere

.

Do planets make noises?

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 .

How long would it take to walk to Pluto?

At a minimum the distance between Earth and Pluto are 29 astronomical unit . An AU is defined as 149597870700 meters. If you are a halfway average walker, you will make about 6 kilometers an hour, which means it will take you 24932978,45 hours or approximately

2844,28 years

to walk to Pluto.

How long would it take to get to Pluto from the Sun?

Starting from launch on January 19, 2006, and with a gravity assist from Jupiter along the way, NASA's New Horizons spacecraft took

9 years and 5 months

to get to Pluto, 39 AU from the Sun. It traveled at an average speed of 4.1 AU/year. Deep-space missions can take up to 10 years from development to launch.

How long does it take to reach Mars?

According to NASA,

a one-way trip to Mars would take about nine months

. If you wanted to make it a round-trip, all in all, it would take about 21 months as you will need to wait about three months on Mars to make sure Earth and Mars are in a suitable location to make the trip back home.

Why is the Sun on an 11-year cycle?

The Short Answer:

The Sun's magnetic field goes through a cycle, called the solar cycle. Every 11 years or so,

the Sun's magnetic field completely flips

. This means that the Sun's north and south poles switch places. Then it takes about another 11 years for the Sun's north and south poles to flip back again.

How many sunspots will there be in 2022?

Are sunspots visible from Earth?

Sunspots expand and contract as they move across the surface of the Sun, with diameters ranging from 16 km (10 mi) to 160,000 km (100,000 mi).

Larger sunspots can be visible from Earth without the aid of a telescope

.

How cold is outer space?

Hot things move quickly, cold things very slowly. If atoms come to a complete stop, they are at absolute zero. Space is just above that,

at an average temperature of 2.7 Kelvin (about minus 455 degrees Fahrenheit)

.

Why is the sun so hot but it's cold in space?

The reason is obvious:

sunlight contains energy, and in near-Earth space, there is no atmosphere to filter that energy, so it's even more intense than it is down here

. Now, on Earth, if you put something out in the sun, it warms up.

Why can't you see the stars in space?

Because space is a near-perfect vacuum — meaning it has exceedingly few particles — there's virtually nothing in the space between stars and planets to scatter light to our eyes

. And with no light reaching the eyes, they see black.