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Facts About Earth - Science@NASA
Jan 22, 2025 · Near the surface, Earth has an atmosphere that consists of 78% nitrogen, 21% oxygen, and 1% other gases such as argon, carbon dioxide, and neon. The atmosphere …
Earth | Definition, Size, Composition, Temperature, Mass, & Facts ...
Jan 31, 2025 · Earth’s surface is traditionally subdivided into seven continental masses: Africa, Antarctica, Asia, Australia, Europe, North America, and South America. These continents are …
Journal of Geophysical Research: Earth Surface
JGR: Earth Surface publishes original research articles on the physical, chemical and biological processes that affect the form and function of the surface of the solid Earth over all temporal …
Scientists Detect Shape-Shifting Along Earth’s Solid Inner Core
1 day ago · The Earth’s inner core, a ball of iron and nickel about 1,500 miles wide, is deformed on its surface by the movements of the liquid outer core.
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 …
Earth’s Surface & Interior | Terra
6 days ago · How do tectonics and climate interact to shape the Earth’s surface and create natural hazards? What are the interactions among ice masses, oceans, and the solid Earth and their …
Scientists discover Earth's inner core isn't just slowing down — it's ...
2 days ago · The surface of Earth's inner core may be shape-shifting, new research suggests. The study, published Feb. 10 in the journal Nature, looked at earthquake waves that have …
All About Earth | NASA Space Place – NASA Science for Kids
Jan 14, 2025 · 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 …
Structure of the Earth! - National Geographic Kids
The Earth’s surface is covered by its thinnest layer, the crust. Land is made of continental crust, which is 8km to 70km thick and made mostly from a rock called granite. The layer beneath the …
Earth Fact Sheet - NSSDCA
Surface pressure: 1014 mb Surface density: 1.217 kg/m 3 Scale height: 8.5 km Total mass of atmosphere: 5.1 x 10 18 kg Total mass of hydrosphere: 1.4 x 10 21 kg Average temperature: …