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  2. Feb 11, 2017 · According to modern estimates, the surface area of the Earth is approximately 510 million square km (5.1 x 10 8 km 2) or 196,900,000 square miles. Determining this was not only a matter...

    • Namesake. The name Earth is at least 1,000 years old. All of the planets, except for Earth, were named after Greek and Roman gods and goddesses. However, the name Earth is a Germanic word, which simply means “the ground.”
    • Potential for Life. Earth has a very hospitable temperature and mix of chemicals that have made life abundant here. Most notably, Earth is unique in that most of our planet is covered in liquid water, since the temperature allows liquid water to exist for extended periods of time.
    • Size and Distance. 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.
    • Orbit and Rotation. As Earth orbits the Sun, it completes one rotation every 23.9 hours. It takes 365.25 days to complete one trip around the Sun. That extra quarter of a day presents a challenge to our calendar system, which counts one year as 365 days.
  3. en.wikipedia.org › wiki › EarthEarth - 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.

  4. nssdc.gsfc.nasa.gov › planetary › factsheetEarth Fact Sheet - NSSDCA

    Terrestrial Atmosphere. 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: 288 K (15 C) Diurnal temperature range: 283 K to 293 K (10 to 20 C) Wind speeds: 0 to 100 m/s.

  5. Jul 6, 2021 · The surface area of Earth is about 197 million square miles (510 million square kilometers). Around 57 million square miles (148 square km), or 29%, is taken up by land, while the...

  6. Total Surface Area: about 509 600 000 square km (197 000 000 square miles). Area of land: 148 326 000 km 2 (57 268 900 square miles), this are 29% of the total surface of Planet Earth. Area of water: 361 740 000 km 2 (139 668 500 square miles), this are 71% of the total surface of the Earth.

  7. Oct 20, 2023 · Size: Earth has a diameter of 7,926 miles (12,756 kilometers). Distance from the Sun: Earth is the third planet from the Sun, which is about 93 million miles (150 million km) away.

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