Facts About Earth - NASA Science
With an equatorial diameter of 7926 miles (12,760 kilometers), Earth is the biggest of the terrestrial planets and the fifth largest planet in our solar system. From an average distance of 93 million miles (150 million kilometers), Earth is exactly one astronomical unit away from the Sun because one astronomical unit (abbreviated as AU), is the ...
Earth, our home planet | The Planetary Society
Earth is the fifth-largest planet in our Solar System and the third planet from the Sun. It sits in our Sun’s habitable zone, the not-too-hot, not-too-cold region around a star where liquid water can exist on a planet’s surface. Our planet’s churning liquid-metal core generates a magnetic field that shields us from most of the Sun’s ...
Solar System Exploration - NASA Science
Learn about the planets in our solar system. The solar system has eight planets: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. There are five officially recognized dwarf planets in our solar system: Ceres, Pluto, Haumea, Makemake, and Eris.
Earth - Wikipedia
Earth is the third planet from the Sun and the only astronomical object known to harbor life. This is enabled by Earth being an ocean 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 crust.
In Depth | Earth - NASA Solar System Exploration
While Earth is only the fifth largest planet in the solar system, it is the only world in our solar system with liquid water on the surface. Just slightly larger than nearby Venus, Earth is the biggest of the four planets closest to the Sun, all of which are made of rock and metal.
Planet Earth facts and information - National Geographic
Earth, our home planet, is a world unlike any other. The third planet from the sun, Earth is the only place in the known universe confirmed to host life. With a radius of 3,959 miles, Earth...
The Earth in the Solar System - Geographic Book
2024年1月23日 · Earth is the third planet from the Sun in our Solar System. Its elliptical orbit influences seasonal changes. The composition includes a solid core, a semi-solid mantle, and a solid crust.
Earth | Definition, Size, Composition, Temperature, Mass, & Facts ...
2024年11月29日 · Earth, third planet from the Sun and the fifth largest planet in the solar system in terms of size and mass. Its single most outstanding feature is that its near-surface environments are the only places in the universe known to harbor life.
All About Earth | NASA Space Place – NASA Science for Kids
2024年11月8日 · Earth is a terrestrial planet. It is small and rocky. Earth's atmosphere is the right thickness to keep the planet warm so living things like us can be there. It’s the only planet in our solar system we know of that supports life. It is mostly nitrogen, and it has plenty of oxygen for us to breathe. Time on Earth
In Depth | Our Solar System - NASA Solar System Exploration
Our solar system consists of our star, the Sun, and everything bound to it by gravity – the planets Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune; dwarf planets such as Pluto; dozens of moons; and millions of asteroids, comets, and meteoroids.