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Hace 1 día · Earth’s name in English, the international language of astronomy, derives from Old English and Germanic words for ground and earth, and it is the only name for a planet of the solar system that does not come from Greco-Roman mythology.
- Basic Planetary Data
Earth - Planet, Atmosphere, Geology: The mean distance of...
- The Atmosphere
Earth - Atmosphere, Climate, Ozone: Earth is surrounded by a...
- Accretion of the Early Earth
Earth - Accretion, Formation, Core: As the gas making up the...
- Planetary Differentiation
Earth - Differentiation, Formation, Structure: Once hot,...
- Structure, Composition, Development
Development of Earth’s structure and composition. The origin...
- The Outer Shell
Earth - Core, Crust, Mantle: Earth’s outermost, rigid, rocky...
- Basic Planetary Data
Hace 5 días · 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.
So "Earth" is simply the "reference point" for what's under your feet, while "sky/heavens/space" refers to everything above. So when we figured out we are on a planet - we said - "The Earth is a planet. It is spherical, and it revolves around the sun." So it is NOT that the planet is named Earth. Rather we learned that the Earth is a planet.
NASA's Earth Information Center allows visitors to see how our planet is changing in six key areas: sea level rise and coastal impacts, health and air quality, wildfires, greenhouse gases, sustainable energy, and agriculture.
Hace 1 día · It is a name that is mostly associated with Western cultures, especially those that speak English. The name “Earth” has quite a complex etymology. Unlike the names of the other planets in our ...
Hace 2 días · Enrico Fermi (Los Alamos 1945) The Fermi paradox is the discrepancy between the lack of conclusive evidence of advanced extraterrestrial life and the apparently high likelihood of its existence. As a 2015 article put it, "If life is so easy, someone from somewhere must have come calling by now." Italian-American physicist Enrico Fermi's name is associated with the paradox because of a casual ...
Hace 4 días · Ganymede, or Jupiter III, is the largest and most massive natural satellite of Jupiter and in the Solar System. It is the largest Solar System object without a substantial atmosphere, despite being the only moon in the Solar System with a substantial magnetic field.
