How wide is the Earth in miles?
The Earth's diameter at the equator is 7,926.28 miles, and its diameter at the poles is 7,899.80 miles.
How thick is the entire Earth?
Crust - 5 to 70 km thick. Mantle - 2,900 km thick. Outer Core - 2,200 km thick. Inner Core - 1,230 to 1,530 km thick.
How thick is the Earth in miles?
At close to 3,000 kilometers (1,865 miles) thick, this is Earth's thickest layer. It starts a mere 30 kilometers (18.6 miles) beneath the surface.
Related Question How wide is the earth?
How fast is the Earth spinning?
The earth rotates once every 23 hours, 56 minutes and 4.09053 seconds, called the sidereal period, and its circumference is roughly 40,075 kilometers. Thus, the surface of the earth at the equator moves at a speed of 460 meters per second--or roughly 1,000 miles per hour.
What is really inside the Earth?
The Earth's interior is composed of four layers, three solid and one liquid—not magma but molten metal, nearly as hot as the surface of the sun. The deepest layer is a solid iron ball, about 1,500 miles (2,400 kilometers) in diameter. Above the inner core is the outer core, a shell of liquid iron.
What's inside the Earth mantle?
The mantle is the mostly-solid bulk of Earth's interior. The mantle lies between Earth's dense, super-heated core and its thin outer layer, the crust. The other major type of rock found in the mantle is magnesium oxide. Other mantle elements include iron, aluminum, calcium, sodium, and potassium.
What inside the Earth that makes the ground move?
The plates can be thought of like pieces of a cracked shell that rest on the hot, molten rock of Earth's mantle and fit snugly against one another. The heat from radioactive processes within the planet's interior causes the plates to move, sometimes toward and sometimes away from each other.
How hot is the sun?
How many miles is it to space?
Answer: Space is 62 vertical miles away. It takes a lot of energy to overcome gravity for that distance and gain the speed required to stay in orbit (approximately 17,500 miles per hour) once you've arrived.
How many Earths can fit in the sun?
If you divide the volume of the sun by the volume of the Earth, you get that roughly 1.3 million Earths can fit inside the sun.
What altitude does gravity stop?
Near the surface of the Earth (sea level), gravity decreases with height such that linear extrapolation would give zero gravity at a height of one half of the Earth's radius - (9.8 m·s−2 per 3,200 km.)
Why do we not feel the Earth moving?
But, for the most part, we don't feel the Earth itself spinning because we are held close to the Earth's surface by gravity and the constant speed of rotation. Our planet has been spinning for billions of years and will continue to spin for billions more. This is because nothing in space is stopping us.
How do planes fly if the Earth is spinning?
First, as the Earth itself rotates, it takes the air with it (thanks, gravity!). That includes the air through which planes fly. At the equator, the Earth spins about twice as fast as a commercial jet can fly. That rate slows the closer you get to the poles, but regardless, it's always going to be faster than a plane.
What if Earth rotated backwards?
Short answer – the reversed spin would make the Earth much greener. Long answer – this new rotation would change winds and ocean currents, and that would shift the planet's climate entirely. Instead, a different current would surface in the Pacific and become responsible to distributing heat around the globe.
Do we live on Earth or in Earth?
The Correct way to say it, is we are living on the earth , Because we are living on the Surface of this Planet, and if you said in the earth, it would sound funny, most people would think you were living in a secret passageway in the ground, in Reality though If you were talking to some super Science People, it is
Can we drill to the center of the Earth?
It's the thinnest of three main layers, yet humans have never drilled all the way through it. Then, the mantle makes up a whopping 84% of the planet's volume. At the inner core, you'd have to drill through solid iron. This would be especially difficult because there's near-zero gravity at the core.
Which city is the center of the world?
Since Jerusalem was located near the middle of the known world of antiquity, it naturally occupied a central position on early world maps.
Why is Earth hot inside?
There are three main sources of heat in the deep earth: (1) heat from when the planet formed and accreted, which has not yet been lost; (2) frictional heating, caused by denser core material sinking to the center of the planet; and (3) heat from the decay of radioactive elements.
Is the center of the Earth solid?
The core of the Earth is made up mainly of iron, in an outer liquid layer and an inner solid layer. And they have not only established that the inner core really is solid, they have also found evidence of S-wave anisotropy in the inner core, with implications for inner core crystal structure and growth.
Which is the hottest part of the Earth?
The hottest layer of the Earth is its innermost layer, the inner core.
How far down is the inner core?
The core is found about 2,900 kilometers (1,802 miles) below Earth's surface, and has a radius of about 3,485 kilometers (2,165 miles). Planet Earth is older than the core. When Earth was formed about 4.5 billion years ago, it was a uniform ball of hot rock.
Does the atmosphere protect the Earth?
Not only does it contain the oxygen we need to live, but it also protects us from harmful ultraviolet solar radiation. It creates the pressure without which liquid water couldn't exist on our planet's surface. And it warms our planet and keeps temperatures habitable for our living Earth.
How cold is the moon?
The average temperature on the Moon (at the equator and mid latitudes) varies from -298 degrees Fahrenheit (-183 degrees Celsius), at night, to 224 degrees Fahrenheit (106 degrees Celsius) during the day.
What's hotter lava or the sun?
Lava is indeed very hot, reaching temperatures of 2,200° F or more. But even lava can't hold a candle to the sun! At its surface (called the "photosphere"), the sun's temperature is a whopping 10,000° F! That's about five times hotter than the hottest lava on Earth.
Is the sun made of lava?
The sun is a big ball of gas and plasma. Most of the gas — 92% — is hydrogen.
Is anyone lost in space?
A total of 18 people have lost their lives either while in space or in preparation for a space mission, in four separate incidents. Given the risks involved in space flight, this number is surprisingly low. The remaining four fatalities during spaceflight were all cosmonauts from the Soviet Union.
Would a body decay in space?
If you do die in space, your body will not decompose in the normal way, since there is no oxygen. If you were near a source of heat, your body would mummify; if you were not, it would freeze. If your body was sealed in a space suit, it would decompose, but only for as long as the oxygen lasted.
Can airplanes fly in space?
There's simply no air to travel over and under an airplane's wings in space, which is a main reason airplanes can't fly in space. Another reason airplanes can't fly in space is because they require air to generate combustion. Since there isn't any air in space, airplanes must stay within the Earth's atmosphere.
Will we ever land on the Sun?
But if you take a look around, there's nothing here for you to actually land on, because the sun doesn't have any solid surface to speak of. It's just a giant ball of hydrogen and helium gas. So instead of landing on the photosphere, you're going to sink into it.
How many galaxies are there?
The Hubble Deep Field, an extremely long exposure of a relatively empty part of the sky, provided evidence that there are about 125 billion (1.25×1011) galaxies in the observable universe.
How large is Jupiter compared to the Sun?
Jupiter, the largest planet in the solar system, has a diameter of about 87,000 miles. (And even Jupiter is tiny compared to the Sun, which is roughly ten times wider than Jupiter, at about 864,000 miles.)
How fast would you freeze in space?
90 seconds after exposure, you'll die from asphyxiation. It's also very cold in space. You'll eventually freeze solid. Depending on where you are in space, this will take 12-26 hours, but if you're close to a star, you'll be burnt to a crisp instead.
How long would it take you to get to the sun?
It would be faster to fly to the sun: It would take 169,090 hours to fly there at 550 miles per hour. It would take 7,045 days to fly there at 550 miles per hour.
How far is earth's gravity?
You need to travel roughly 62 miles upward to leave Earth's upper atmosphere, but be traveling at approximately 25,000 mph to break free from the gravitational pull of the Earth.
Does earth have zero gravity?
Astronauts orbiting the Earth in a space station experience zero gravity or weightlessness because their spacecraft continuously undergoes changes in velocity in its orbit in order to prevent it from being pulled into the atmosphere. are influenced by the force of gravity. Zero gravity on earth is 0 m/s2.
Does zero gravity exist?
Contrary to popular belief, there's no such thing as zero gravity. The earth's gravity keeps the moon in orbit. And astronauts are generally much closer to earth than the moon is, which means that the earth's pull on them has to be much stronger.
What happens if astronaut floats away?
If an astronaut floating away from his spaceship he ends up orbiting around Earth by the gravity force until he runs out of oxygen or some debris from the space hits him and causes to tore up his suit. To avoid this from happening the international space station follows strict rules.
Does time ever end?
“Time is unlikely to end in our lifetime, but there is a 50% chance that time will end within the next 3.7 billion years,” they say. That's not so long! It means that the end of the time is likely to happen within the lifetime of the Earth and the Sun. At least, not for another 3.7 billion years.
How will the universe end?
Astronomers once thought the universe could collapse in a Big Crunch. Now most agree it will end with a Big Freeze. Trillions of years in the future, long after Earth is destroyed, the universe will drift apart until galaxy and star formation ceases. Slowly, stars will fizzle out, turning night skies black.
What happens if the Earth spins faster?
The faster the Earth spins, the shorter our days would become. With a 1 mph speed increase, the day would only get about a minute and a half shorter and our internal body clocks, which stick to a pretty strict 24-hour schedule, probably wouldn't notice.
Is the Earth really spinning?
Earth moves very fast. It spins (rotates) at a speed of about 1,000 miles (1600 kilometers) per hour and orbits around the Sun at a speed of about 67,000 miles (107,000 kilometers) per hour. We do not feel any of this motion because these speeds are constant.
Can astronauts see the Earth rotating?
From space stations, no. They are going around the Earth so quickly that the Earth will appear to be rotating backwards. Their own motion will mask the rotation of the Earth from casual observation. From the moon, not exactly, in the same way you can't see the hour hand of a clock moving.
Why do planes avoid the Pacific Ocean?
The primary reason airplanes don't fly over the Pacific Ocean is because curved routes are shorter than straight routes. Whether a commercial airline is flying from the United States to Asia or elsewhere, it will have the fastest and most fuel-efficient flight by performing a curved rout.
Why can't planes fly over Antarctica?
Why don't planes fly over Antarctica? The White Continent does not have much in the way of infrastructure and herein lies why planes do not fly over it. Something called ETOPS (Extended Operations) governs how far from an emergency diversion airport certain aircraft are allowed to fly, according to its model.
Why do planes fly at 35000 feet?
A balance between operating costs and fuel efficiency is achieved somewhere around 35,000 feet, which is why commercial airplanes usually fly at that altitude. Commercial airplanes can climb to 42,000 feet, but going beyond that can be precarious, as the air starts to become too thin for optimum flight of the airplane.
What if Earth had two suns?
The Earth's orbit could be stable if the planet rotated around the two stars. The stars would have to be close together, and the Earth's orbit would be further away. Most likely, beyond the habitable zone, where the heat of the suns wouldn't be enough to keep our water in a liquid state.
What would happen if the Earth stopped turning?
At the Equator, the earth's rotational motion is at its fastest, about a thousand miles an hour. If that motion suddenly stopped, the momentum would send things flying eastward. Moving rocks and oceans would trigger earthquakes and tsunamis. The still-moving atmosphere would scour landscapes.