The Earth's crust is an extremely thin layer of rock that makes up the outermost solid shell of our planet. In relative terms, it's thickness is like that of the skin of an apple. It amounts to less than half of 1 percent of the planet's total mass but plays a vital role in most of Earth's natural cycles.Earth's density is 5.513 grams per cubic centimeter, according to NASA. Earth is the densest planet in the solar system because of its metallic core and rocky mantle. Jupiter, which is 318 more ...Earth exists thanks to our sun, having formed in orbit around it from a huge cloud of gas and dust in space, 4.5 billion years ago. Likewise, the sun will ruin Earth for living things, some 5 ...Earth - Atmosphere, Climate, Ozone: Earth is surrounded by a relatively thin atmosphere (commonly called air) consisting of a mixture of gases, primarily molecular nitrogen (78 percent) and molecular oxygen (21 percent). Also present are much smaller amounts of gases such as argon (nearly 1 percent), water vapour (averaging 1 percent but highly variable in time and location), carbon dioxide (0 ... Jun 2, 2022 · In the 1800s, as scientists sought to determine the age of the planet, they made a few missteps. In 1862, a famous Irish physicist and mathematician, Lord Kelvin, estimated that Earth was between 20-million and 400-million years old. While that is an enormous span of time, even an age of 400 million years would make the planet quite young in ... Facts about the Earth. 1) Earth is the third planet from the sun in our solar system. Its name comes from the the old English and Germanic words meaning ‘the ground’. 2) Our amazing planet has been around for quite some time. By researching our planet’s rocks, scientists have calculated the Earth to be around 4.5 billion years old! Mar 25, 2020 · Mar 25, 2020. Dating the earth in years is tricky. We all know that there are those who believe the earth is billions of years old, and there are those who believe the earth is 6000 years old, or so. Then, there are those who are somewhere in between; and there are those who simply say, "I do not know." Each of these, including the latter ... Earth is one of the four inner, terrestrial planets in our solar system. Just like the other inner planets —Mercury, Venus, and Mars—it is relatively small and rocky. Early in the history of the solar system, rocky material was the only substance that could exist so close to the Sun and withstand its heat.Earth's density is 5.513 grams per cubic centimeter, according to NASA. Earth is the densest planet in the solar system because of its metallic core and rocky mantle. Jupiter, which is 318 more ...And both the-- the entire core, both the outer core and the inner core, is mainly nickel and iron. Think about when the earth was forming. What happens is when this whole earth was super hot and was kind of in a fluid state, the heavier elements were allowed to sink down, when everything was fluid.earth: 1. ( often initial capital letter ) the planet third in order from the sun, having an equatorial diameter of 7926 miles (12,755 km) and a polar diameter of 7900 miles (12,714 km), a mean distance from the sun of 92.9 million miles (149.6 million km), and a period of revolution of 365.26 days, and having one satellite.NASA.gov brings you the latest images, videos and news from America's space agency. Get the latest updates on NASA missions, watch NASA TV live, and learn about our quest to reveal the unknown and benefit all humankind.Orbital parameters Semimajor axis (10 6 km) 149.598 Sidereal orbit period (days) 365.256 Tropical orbit period (days) 365.242 Perihelion (10 6 km) 147.095 Aphelion (10 6 km) 152.100 Mean orbital velocity (km/s) 29.78 Max. orbital velocity (km/s) 30.29 Min. orbital velocity (km/s) 29.29 Orbit inclination (deg) 0.000 Orbit eccentricity 0.0167 Sidereal rotation period (hrs) 23.9345 Length of day ... How the Earth and moon formed, explained. The Earth formed over 4.6 billion years ago out of a mixture of dust and gas around the young sun. It grew larger thanks to countless collisions between dust particles, asteroids, and other growing planets, including one last giant impact that threw enough rock, gas, and dust into space to form the moon.Earth is the third planet from the Sun and the only astronomical object known to harbor life. This is enabled by Earth being a water world, the only one in the Solar System sustaining liquid surface water. Almost all of Earth's water is contained in its global ocean, covering 70.8% of Earth's surface. Nov 22, 2018 · Earth is the only planet known to maintain life. Find out the origins of our home planet and some of the key ingredients that help make this blue speck in space a unique global ecosystem ... Earth science research, climate change, and global warming. The latest news and updates from Phys.org Earth is the densest major body in the solar system. Density of planet Earth is about 5.52 g/cm 3 or 5 520 kg/m 3. Water, as you might know, has a density of 1000 kg/m 3 at 3.98 degrees centigrade and at one atmosphere of pressure. Orbital Data: Sidereal period (Time Earth needs to orbit the sun once) 365.256 days. Rotation: There are more than 190 moons orbiting the planets and asteroids in our solar system, and Earth’s moon is the fifth largest of the lot. It spans about 2,160 miles across, nearly a third the ...From the Earth Missouri dispensaries offer curbside pickup and delivery services in select areas, including Downtown, Westside, Brookside, Independence, and Raytown. Other things to note: To guarantee a smooth ride, please ensure exact change on hand, as drivers can only provide up to $5 in change.Earth is the third planet from the Sun and the only astronomical object known to harbor life. This is enabled by Earth being a water world, the only one in the Solar System sustaining liquid surface water. Almost all of Earth's water is contained in its global ocean, covering 70.8% of Earth's surface.And both the-- the entire core, both the outer core and the inner core, is mainly nickel and iron. Think about when the earth was forming. What happens is when this whole earth was super hot and was kind of in a fluid state, the heavier elements were allowed to sink down, when everything was fluid.A. A scene in Christopher Nolan's Oppenheimer hinges around the worry some Manhattan Project scientists felt that the first atomic bomb test would ignite Earth's atmosphere. Edward Teller, so the ...Meet the artist. Sarah Jacoby is an illustrator and a production designer at Tinybop. The landscape she created to represent our planet in The Earth was a 32-foot long Photoshop file. But the biggest challenge wasn’t scale, it was figuring out an interesting and colorful way to draw dirt. Learn more about Sarah in our interview.Earth is the only special planet of the Solar system that contains life due to the presence of liquid water in abundance and free atmospheric oxygen. Earth has an oblate spheroidal shape. The mass of Earth is approximately 5.97x10²⁴. Earth revolves around the sun and completes its one round in 365.26 days. Jul 31, 2016 · The days are getting longer. The length of Earth's day is increasing. When Earth was formed 4.6 billion years ago, its day would have been roughly six hours long. By 620 million years ago, this had increased to 21.9 hours. Today, the average day is 24 hours long, but is increasing by about 1.7 milliseconds every century. Earth's circumference (the distance all the way around the equator) is 24,901 miles (40,075 kilometers). Its diameter (the distance from one side to the other through Earth's center) is 7,926 miles (about 12,756 kilometers).Common Noun. “Earth” and “the earth” are the common noun variations, which are used when we don’t capitalize the word. You should use “the earth” when describing the land on the planet, and you should use “earth” when talking about soil or mud that grows plants. The definition of “the earth,” according to The Cambridge ...Jan 4, 2022 · The earth is the Lord’s speaks of God’s sovereignty as ruler, creator, and owner of all the world: “The earth is the LORD’s, and everything in it. The world and all its people belong to him” ( Psalm 24:1, NLT ). God’s sovereignty means that He has the ultimate power, authority, wisdom to do whatever He chooses within His creation ... The internal structure of Earth is the solid portion of the Earth, [clarification needed] excluding its atmosphere and hydrosphere. The structure consists of an outer silicate solid crust, a highly viscous asthenosphere and solid mantle, a liquid outer core whose flow generates the Earth's magnetic field, and a solid inner core .While the Earth appears to be round when viewed from the vantage point of space, it is actually closer to an ellipsoid. However, even an ellipsoid does not adequately describe the Earth’s unique and ever-changing shape. Our planet is pudgier at the equator than at the poles by about 70,000 feet. Jul 31, 2016 · The days are getting longer. The length of Earth's day is increasing. When Earth was formed 4.6 billion years ago, its day would have been roughly six hours long. By 620 million years ago, this had increased to 21.9 hours. Today, the average day is 24 hours long, but is increasing by about 1.7 milliseconds every century. NASA's website for all news, images and videos related to Earth science. Your planet is changing. We're on it. With Google Earth for Chrome, fly anywhere in seconds and explore hundreds of 3D cities right in your browser. Roll the dice to discover someplace new, take a guided tour with Voyager, and create ...They estimate that Earth formed more than 4.4 billion years ago. Although no one knows when the outer crust of the planet began to form, some scientists believe that the existence of a few grains of zircon dated to about 4.4 billion years ago confirm the presence of stable continents, liquid water, and surface temperatures that were probably ...18 hours ago · How did researchers determine the meteorite's age? Krestianinov and his colleagues analyzed lead and uranium isotopes in Erg Chech 002 and determined its lead-isotopic age as about 4.566 billion ... Science Reference Planet Earth, explained Our home planet provides us with life and protects us from space. By Michael Greshko 7 min read Earth, our home planet, is a world unlike any other....earth: 1. ( often initial capital letter ) the planet third in order from the sun, having an equatorial diameter of 7926 miles (12,755 km) and a polar diameter of 7900 miles (12,714 km), a mean distance from the sun of 92.9 million miles (149.6 million km), and a period of revolution of 365.26 days, and having one satellite.In the Earth (stylized as IN THE EⱯRTH) is a 2021 science fiction psychological horror film written and directed by Ben Wheatley. The film stars Joel Fry, Reece Shearsmith, Hayley Squires, Ellora Torchia, John Hollingworth and Mark Monero . In the Earth had its world premiere at the 2021 Sundance Film Festival on 29 January 2021, was released ... A newly discovered space rock about 6.5 feet wide (2 meters) zipped past Earth today at a distance five times closer than GPS satellites orbit. The small asteroid, designated C9FMVU2, was first ...A study published last year found that 1.27 million people died in 2019 from infections resistant to antimicrobial drugs. The annual death toll could reach 10 million by 2050, according to the ...Dec 7, 2022 · Claim: Earth isn't curved and doesn't rotate. Our rating: False. The Earth is curved and does rotate, and there are several ways scientists have proved this, experts say. The curvature of the ... 5 hours ago · Four asteroids are passing by the Earth this week, and a New Mexico observatory is part of the network watching them go past. On Friday, Asteroids QC5 and GE will go through the solar system at 2. ... 17 hours ago · A study published last year found that 1.27 million people died in 2019 from infections resistant to antimicrobial drugs. The annual death toll could reach 10 million by 2050, according to the ... With Google Earth for Chrome, fly anywhere in seconds and explore hundreds of 3D cities right in your browser. Roll the dice to discover someplace new, take a guided tour with Voyager, and create ...earth: 1. ( often initial capital letter ) the planet third in order from the sun, having an equatorial diameter of 7926 miles (12,755 km) and a polar diameter of 7900 miles (12,714 km), a mean distance from the sun of 92.9 million miles (149.6 million km), and a period of revolution of 365.26 days, and having one satellite. And both the-- the entire core, both the outer core and the inner core, is mainly nickel and iron. Think about when the earth was forming. What happens is when this whole earth was super hot and was kind of in a fluid state, the heavier elements were allowed to sink down, when everything was fluid.the earth is a living thing. Lucille Clifton. 1936 –. 2010. is a black shambling bear ruffling its wild back and tossing mountains into the sea is a black hawk circling the burying ground circling the bones picked clean and discarded is a fish black blind in the belly of water is a diamond blind in the black belly of coal is a black and ...The earth is the Lord’s and everything in it, the world, and all who live in it; For he founded it upon the seas and established it upon the waters, Psalm 24:1-2. The Psalmist confirms God’s ...earth: 1. ( often initial capital letter ) the planet third in order from the sun, having an equatorial diameter of 7926 miles (12,755 km) and a polar diameter of 7900 miles (12,714 km), a mean distance from the sun of 92.9 million miles (149.6 million km), and a period of revolution of 365.26 days, and having one satellite.Earth is the third planet from the Sun and the only astronomical object known to harbor life. This is enabled by Earth being a water world, the only one in the Solar System sustaining liquid surface water. Almost all of Earth's water is contained in its global ocean, covering 70.8% of Earth's surface.One is the heat that Earth inherited during its formation 4.5 billion years ago. The Earth was made from the solar nebula , a gigantic gaseous cloud, amid endless collisions and mergings between ...The meaning of EARTH is the fragmental material composing part of the surface of the globe; especially : cultivable soil. How to use earth in a sentence.They estimate that Earth formed more than 4.4 billion years ago. Although no one knows when the outer crust of the planet began to form, some scientists believe that the existence of a few grains of zircon dated to about 4.4 billion years ago confirm the presence of stable continents, liquid water, and surface temperatures that were probably ...27. The thinnest of all the layers is the crust, which is on an average 30 kilometers deep on an average on the ground. 28. Earth also has the largest natural satellite as compared to any other planet considering the size of Earth and the moon (the Moon is approximately 27% the size of the Earth.) 29.10 Things: Dust in the Wind (on Mars and Well Beyond) Frozen: Ice on Earth and Well Beyond. US-European Satellite Will Make World's First Global Freshwater Survey. nasa.gov. NASA, SpaceX Launch Climate Science Research, More to Space Station. nasa.gov. NASA's ECOSTRESS Sees Las Vegas Streets Turn Up the Heat. nasa.gov. Meet the artist. Sarah Jacoby is an illustrator and a production designer at Tinybop. The landscape she created to represent our planet in The Earth was a 32-foot long Photoshop file. But the biggest challenge wasn’t scale, it was figuring out an interesting and colorful way to draw dirt. Learn more about Sarah in our interview.Common Noun. “Earth” and “the earth” are the common noun variations, which are used when we don’t capitalize the word. You should use “the earth” when describing the land on the planet, and you should use “earth” when talking about soil or mud that grows plants. The definition of “the earth,” according to The Cambridge ...Orbital parameters Semimajor axis (10 6 km) 149.598 Sidereal orbit period (days) 365.256 Tropical orbit period (days) 365.242 Perihelion (10 6 km) 147.095 Aphelion (10 6 km) 152.100 Mean orbital velocity (km/s) 29.78 Max. orbital velocity (km/s) 30.29 Min. orbital velocity (km/s) 29.29 Orbit inclination (deg) 0.000 Orbit eccentricity 0.0167 Sidereal rotation period (hrs) 23.9345 Length of day ...Facts about the Earth. 1) Earth is the third planet from the sun in our solar system. Its name comes from the the old English and Germanic words meaning ‘the ground’. 2) Our amazing planet has been around for quite some time. By researching our planet’s rocks, scientists have calculated the Earth to be around 4.5 billion years old! Jul 25, 2022 · 27. The thinnest of all the layers is the crust, which is on an average 30 kilometers deep on an average on the ground. 28. Earth also has the largest natural satellite as compared to any other planet considering the size of Earth and the moon (the Moon is approximately 27% the size of the Earth.) 29. Earth is estimated to be 4.54 billion years old, plus or minus about 50 million years. Scientists have scoured the Earth searching for the oldest rocks to radiometrically date. In northwestern Canada, they discovered rocks about 4.03 billion years old. Then, in Australia, they discovered minerals about 4.3 billion years old. Researchers know that rocks are continuously recycling, due to the ...Jul 31, 2016 · The days are getting longer. The length of Earth's day is increasing. When Earth was formed 4.6 billion years ago, its day would have been roughly six hours long. By 620 million years ago, this had increased to 21.9 hours. Today, the average day is 24 hours long, but is increasing by about 1.7 milliseconds every century. With Google Earth for Chrome, fly anywhere in seconds and explore hundreds of 3D cities right in your browser. Roll the dice to discover someplace new, take a guided tour with Voyager, and create ... Apr 8, 2022 · This process created our solar system's asteroids, comets, planets and moons. Earth's rocky core formed first, with heavy elements colliding and binding together. Dense material sank to the ... Jun 2, 2022 · In the 1800s, as scientists sought to determine the age of the planet, they made a few missteps. In 1862, a famous Irish physicist and mathematician, Lord Kelvin, estimated that Earth was between 20-million and 400-million years old. While that is an enormous span of time, even an age of 400 million years would make the planet quite young in ... Earth is the third planet from the Sun and the only astronomical object known to harbor life. This is enabled by Earth being a water world, the only one in the Solar System sustaining liquid surface water. Almost all of Earth's water is contained in its global ocean, covering 70.8% of Earth's surface.When Earth first formed 4.6 billion years ago, a day was about six hours long. Since then, the Earth has slowed down. It takes longer to spin around. Every 100 years, the day gets 0.0017 seconds longer. Why? The moon is slowing down Earth’s rotation with the tides it creates.King David, King Solomon, and King Saul all were kings of the earth. Nebuchadnezzar was also a king of the earth. Although he most likely worshiped God the Father, we don't have much evidence. But I do believe he worshipped other Gods while worshiping God the Father, the true God, as the greatest God.Aug 24, 2023 · All About Earth. Since we live here, you might think we know all there is to know about Earth. Not at all, actually! We have a lot we can learn about our home planet. Learn more about Earth and all the planets in our solar system. Play. Go With the Flow! In the Earth (stylized as IN THE EⱯRTH) is a 2021 science fiction psychological horror film written and directed by Ben Wheatley. The film stars Joel Fry, Reece Shearsmith, Hayley Squires, Ellora Torchia, John Hollingworth and Mark Monero . In the Earth had its world premiere at the 2021 Sundance Film Festival on 29 January 2021, was released ... When Earth is a proper noun, the is usually omitted. When you are talking about the ground or soil as a surface or stratum, then you must lowercase the word: The archaeologists excavated the earth at the site. It is acceptable to leave earth lowercase and use the with earth if you are talking about it as the planet we live on: The earth rotates ...Sep 7, 2023 · USA TODAY. A newly discovered comet will briefly illuminate the night sky before the end of the month. This is the first time in more than 400 years that Comet Nishimura will pass by the Earth ... USA TODAY. A newly discovered comet will briefly illuminate the night sky before the end of the month. This is the first time in more than 400 years that Comet Nishimura will pass by the Earth ...18 hours ago · How did researchers determine the meteorite's age? Krestianinov and his colleagues analyzed lead and uranium isotopes in Erg Chech 002 and determined its lead-isotopic age as about 4.566 billion ... Download Google Earth in Apple App Store Download Google Earth in Google Play Store Launch Earth. keyboard_arrow_down. Create stories and maps. With creation tools, you can draw on the map, add ...The meaning of EARTH is the fragmental material composing part of the surface of the globe; especially : cultivable soil. How to use earth in a sentence.When Earth is a proper noun, the is usually omitted. When you are talking about the ground or soil as a surface or stratum, then you must lowercase the word: The archaeologists excavated the earth at the site. It is acceptable to leave earth lowercase and use the with earth if you are talking about it as the planet we live on: The earth rotates ...NASA's website for all news, images and videos related to Earth science. Your planet is changing. We're on it.NASA.gov brings you the latest images, videos and news from America's space agency. Get the latest updates on NASA missions, watch NASA TV live, and learn about our quest to reveal the unknown and benefit all humankind.Earth is the only planet known to maintain life. Find out the origins of our home planet and some of the key ingredients that help make this blue speck in space a unique global ecosystem ...Dec 15, 2020 · The earth is split into four major layers: the crust, the mantle, the outer core and the inner core. The crust is what humans live on, and it consists of only one percent of the Earth's mass. The centre of the Earth is a solid ball of nickel and iron roughly 70% the size of the moon. Geologists have come a long way in terms of the collective ... Earth science research, climate change, and global warming. The latest news and updates from Phys.org earth: 1. ( often initial capital letter ) the planet third in order from the sun, having an equatorial diameter of 7926 miles (12,755 km) and a polar diameter of 7900 miles (12,714 km), a mean distance from the sun of 92.9 million miles (149.6 million km), and a period of revolution of 365.26 days, and having one satellite.The internal structure of Earth is the solid portion of the Earth, [clarification needed] excluding its atmosphere and hydrosphere. The structure consists of an outer silicate solid crust, a highly viscous asthenosphere and solid mantle, a liquid outer core whose flow generates the Earth's magnetic field, and a solid inner core .The history of Earth is divided into four great eons, starting 4,540 mya with the formation of the planet. Each eon saw the most significant changes in Earth's composition, climate and life. Each eon is subsequently divided into eras, which in turn are divided into periods, which are further divided into epochs . Eon.Earth's density is 5.513 grams per cubic centimeter, according to NASA. Earth is the densest planet in the solar system because of its metallic core and rocky mantle. Jupiter, which is 318 more ...Earth exists thanks to our sun, having formed in orbit around it from a huge cloud of gas and dust in space, 4.5 billion years ago. Likewise, the sun will ruin Earth for living things, some 5 ...The internal structure of Earth is the solid portion of the Earth, [clarification needed] excluding its atmosphere and hydrosphere. The structure consists of an outer silicate solid crust, a highly viscous asthenosphere and solid mantle, a liquid outer core whose flow generates the Earth's magnetic field, and a solid inner core .The meaning of EARTH is the fragmental material composing part of the surface of the globe; especially : cultivable soil. How to use earth in a sentence.The Bible says that “God created the heavens and the earth.”. ( Genesis 1:1) He told the first human pair: “Be fruitful and become many, fill the earth and subdue it, and have in subjection . . . every living creature that is moving on the earth.”. ( Genesis 1:28) The only mention of death was in connection with disobedience.
Earth is the only special planet of the Solar system that contains life due to the presence of liquid water in abundance and free atmospheric oxygen. Earth has an oblate spheroidal shape. The mass of Earth is approximately 5.97x10²⁴. Earth revolves around the sun and completes its one round in 365.26 days.. Ikea ottawa hours
The Earth's crust is an extremely thin layer of rock that makes up the outermost solid shell of our planet. In relative terms, it's thickness is like that of the skin of an apple. It amounts to less than half of 1 percent of the planet's total mass but plays a vital role in most of Earth's natural cycles.With Google Earth for Chrome, fly anywhere in seconds and explore hundreds of 3D cities right in your browser. Roll the dice to discover someplace new, take a guided tour with Voyager, and create ... Grab the helm and go on an adventure in Google Earth.In the Earth is currently available to stream on Hulu and Kanopy. If you don’t have access to either of those streamers, the film is available to rent from $1.99 and purchase from $9.99 on ...7 hours ago · The most high-resolution map yet of the underlying geology beneath Earth's Southern Hemisphere reveals something we previously never knew about: an ancient ocean floor that may wrap around the core. This thin but dense layer exists around 2,900 kilometers (1,800 miles) below the surface, according to a study published in April. The earth is the Lord’s and everything in it, the world, and all who live in it; For he founded it upon the seas and established it upon the waters, Psalm 24:1-2. The Psalmist confirms God’s ...The Moon is a large chunk of Earth that detached itself from our planet after a colossal collision occurred around 4.45 billion years ago when the Earth was merely 50 million years old, hence the reason why the Moon is so crucial in determining our planet’s age.Earth is the densest major body in the solar system. Density of planet Earth is about 5.52 g/cm 3 or 5 520 kg/m 3. Water, as you might know, has a density of 1000 kg/m 3 at 3.98 degrees centigrade and at one atmosphere of pressure. Orbital Data: Sidereal period (Time Earth needs to orbit the sun once) 365.256 days. Rotation: Apr 8, 2022 · This process created our solar system's asteroids, comets, planets and moons. Earth's rocky core formed first, with heavy elements colliding and binding together. Dense material sank to the ... Jan 4, 2022 · The earth is the Lord’s speaks of God’s sovereignty as ruler, creator, and owner of all the world: “The earth is the LORD’s, and everything in it. The world and all its people belong to him” ( Psalm 24:1, NLT ). God’s sovereignty means that He has the ultimate power, authority, wisdom to do whatever He chooses within His creation ... Our home planet Earth is a rocky, terrestrial planet. It has a solid and active surface with mountains, valleys, canyons, plains and so much more. Earth is special because it is an ocean planet. Water covers 70% of Earth's surface. Earth's atmosphere is made mostly of nitrogen and has plenty of oxygen for us to breathe.Earth is the only special planet of the Solar system that contains life due to the presence of liquid water in abundance and free atmospheric oxygen. Earth has an oblate spheroidal shape. The mass of Earth is approximately 5.97x10²⁴. Earth revolves around the sun and completes its one round in 365.26 days. The most high-resolution map yet of the underlying geology beneath Earth's Southern Hemisphere reveals something we previously never knew about: an ancient ocean floor that may wrap around the core. This thin but dense layer exists around 2,900 kilometers (1,800 miles) below the surface, according to a study published in April.With a radius of 3,959 miles (6,371 kilometers), Earth is the biggest of the terrestrial planets and the fifth largest planet overall.Common Noun. “Earth” and “the earth” are the common noun variations, which are used when we don’t capitalize the word. You should use “the earth” when describing the land on the planet, and you should use “earth” when talking about soil or mud that grows plants. The definition of “the earth,” according to The Cambridge ... NASA.gov brings you the latest images, videos and news from America's space agency. Get the latest updates on NASA missions, watch NASA TV live, and learn about our quest to reveal the unknown and benefit all humankind. Science Reference Planet Earth, explained Our home planet provides us with life and protects us from space. By Michael Greshko 7 min read Earth, our home planet, is a world unlike any other....The earth is split into four major layers: the crust, the mantle, the outer core and the inner core. The crust is what humans live on, and it consists of only one percent of the Earth's mass. The centre of the Earth is a solid ball of nickel and iron roughly 70% the size of the moon. Geologists have come a long way in terms of the collective ...They estimate that Earth formed more than 4.4 billion years ago. Although no one knows when the outer crust of the planet began to form, some scientists believe that the existence of a few grains of zircon dated to about 4.4 billion years ago confirm the presence of stable continents, liquid water, and surface temperatures that were probably ... Earth is the planet we live on, one of eight planets in our solar system and the only known place in the universe to support life. Earth is the third planet from the sun, after Mercury and Venus, and before Mars. It is about 150 million kilometers (about 93 million miles) from the sun..