The place we call home, Earth is the third rock from the sun and the only planet with known life on it and lots of it too!
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Earth is the only planet whose English name does not derive from Greek or Roman mythology. The name of our planet comes from the Old English and Germanic languages. Many languages throughout the world have their own names for our planet.
Earth is the third planet from the Sun and our home planet.
Earth revolves around the Sun, but its average distance from it is 149 million kilometers / 93 million miles. In astronomy, this is 1 AU or an astronomical unit.
Scientists have researched and estimated that our Earth is around 4.5 billion years old.
Earth formed at around the same time as the rest of our Solar System.
Earth revolves around the Sun once every 365.25 days this is known as one Earth year.
In one year, Earth rotates like a spinning ball about 366.25 times they are known as Earth days.
Earth is the fifth largest planet of the Solar System. It has a diameter of 6.371 km / 3.958 mi. It is the largest terrestrial planet. The other terrestrial planets are Venus, Mars, and Mercury.
The name Earth is at least 1.000 years old. It simply translates to the ground. The Greek name for Earth was Gaia Mother Earth.
Only 3% of Earths water is fresh and 97% of it is salty.
The surface of Earth is covered by water, around 71%, only 29% of Earths surface is covered by land.
The mixture of gases commonly known as air are nitrogen, oxygen, argon, and carbon dioxide. Without them, we couldnt live.
The atmosphere of Earth is divided into 6 layers the troposphere, stratosphere, mesosphere, thermosphere, exosphere, and ionosphere.
Earth has the greatest density out of all the planets in our Solar System. This means it is very compact.
Earth has only one satellite the Moon, but it also has a couple of temporal artificial satellites.
Earth is the third planet from theSunand the fifth largest planet of theSolar System. It is currently the only known location where life is present.
Studying our Earth both with and without the aid of a spacecraft can help us understand just how life developed here and not someplace else.
It was not until the twentieth century that we had maps of the entire planet. Every picture taken from space of our world is very important since they help in predicting the weather, especially in tracking and predicting hurricanes.
The surface of the Earth is very young this means that the surface changed a lot from when it was first formed. Erosion and tectonic processes, like earthquakes, for example, destroy, recreate, and reshape most of Earths surface.
Earth is currently the only known planet where water can exist in liquid form on the surface. Most of our planet is covered by water, around 71%. The vast oceans keep the temperatures on Earth stable, and this is crucial in the maintaining of life. Water is essential for life, at least the way we know it.
Water is also responsible for most of the erosion and weathering of the Earths continents, a process which is unique in our Solar System. Our Earth has four major main layers: an inner core at the center, an outer core enveloping it, the mantle, and the crust.
One day on Earth, or the period in which the planet rotates once on its axis, is 23.9 hours. One Earth year or the period it takes for a celestial body to orbit the Sun once, takes about 365,25 days.
Because of these numbers, we add one day on our calendars every 4 years to maintain their consistency with the planets orbit. This is called a leap day.
The continent of Asia covers about 30% of all the land. Around 60% of the worlds population is located there.
Earth has a core underground in its center. The temperatures there have been estimated to be at 9.800 Fahrenheit / 5.400 degrees Celsius This is even hotter than the surface of the Sun.
On average, one kilogram of Earths seawater contains 35 grams of salt.
Our planet is traveling through space at roughly 107,826 kilometers / 67.000 miles per hour. Since we are so small, we do not feel this incredible speed.
If all the people on Earth would jump at the same time, we could produce a magnitude 4 to 8 earthquake.
The Sun is gigantic! More than 1.3 million Earths could fit inside the Sun.
The first images of Earth taken from space happened on the 24
The Moon is distancing itself from Earth about one inch every year.
Earth, along with the Solar System, is situated in the Milky Way galaxy. Our Solar System orbits the center of the Milky Way at a distance of 28.000 light-years away.
Light reaches us from the Sun in about 8 minutes. If the Sun would vanish, we wouldnt know it until after 8 minutes.
Earth is the fifth largest planet in the Solar System. It has a diameter of 6.371 km / 3.958 mi. It is the largest terrestrial planet. In comparison, Mercury has about 38% of Earths diameter. As such, Earth is almost three times bigger.
When it comes to Venus, it has about 94% of Earths diameter. Mars, on the other hand, is only half the size of Earth. When it comes to the gas giants, things are a bit different.
Both Neptune and Uranus are four times bigger than Earth. Saturn is 9.5 times the Earths diameter while Jupiter has more than 11 times the Earths diameter. It would take around 1.300 Earths to fit Jupiters volume.
A celestial object is considered a planet if:
It orbits the Sun or any other star.
It is massive enough to be rounded by its own gravity.
It has cleared the neighborhood region of its own orbit of very small objects.
No scientific name has been given for Earth since it is the only planet of its type. Sometimes, the word Globe is often used to refer to Earth. Other times, the word World refers to Earth and all life that exists on it.
However, it is unknown who named our planet Earth, but its origin is the Anglo-Saxon word erda which means soil. It later became eorthe and then erthe in the Middle English. In the early 15thcentury, the word Earth was used for the first time as the name of our planet.
Our Earth has an equatorial radius of 6.371 km / 3.958 mi and a polar radius of 6.356 km / 3.949 mi. This means that it isnt completely spherical but a bit bulged at the equator due to rotation.
The atmosphere of Earth consists of 77% nitrogen, 21% oxygen, traces of argon, carbon monoxide, and water. The carbon dioxide is very important.
It helps to maintain Earths temperatures Greenhouse Effect. This process warms Earths temperatures, and without it, the oceans would freeze and life as we know it would probably cease to exist.
Earths atmosphere also protects us from incoming meteoroids, most of them break up in the atmosphere before they reach the surface. Earth is the biggest of the terrestrial planets MarsMercuryVenus.
Earth has only one natural satellite, theMoon.The Moon was used since ancient times to keep track of time. Earths Moon is the fifth largest of all the moons in the Solar System.
It is tidally locked to Earth, and thus it always shows us just one side of its surface. The Moon is also responsible for a steady climate here on Earth, it causes tides, creating a rhythm that has guided humanity for thousands of years.
Earth is truly unique among the planets of the Solar System. It is also very beautiful, with white clouds, blue oceans, and brown lands that shine against the black backdrop of our Solar System. We should try and keep it that way.
Earth is the densest major body in the Solar System it is very compact.
Our Earth is around 4.5 to 4.6 billion years old, but the oldest known rocks are less than 4 billion years old. The oldest fossils of living organisms are less than 3.9 billion years old.
Earth is the third planet from the Sun, and the fifth largest out of all the planets of the Solar System.
The continents of Earth move at the same rate as human fingernails grow.
The Moon is the only natural satellite of Earth. It orbits around us roughly as fast as a rifle bullet.
The Nine Planets has been online since 1994 and was one of the first multimedia websites that appeared on the World Wide Web.
Take an interactive tour of the solar system, or browse the site to find fascinating information, facts, and data about our planets, the solar system, and beyond.
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