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  1. Earth | Definition, Size, Composition, Temperature, Mass, & Facts ...

    3 days ago · 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 …

  2. Facts About Earth - Science@NASA

    Aug 27, 2025 · Earth – our home planet – is the third planet from the Sun, and the fifth largest planet. It's the only place we know of inhabited by living things. While Earth is only the fifth …

  3. 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 …

  4. What is Earth? A Journey Through the Living Planet

    May 18, 2025 · Earth is our home, the only place in the cosmos where life is known to flourish. It is a planet of oceans and mountains, storms and forests, deserts and rivers.

  5. Earth - National Geographic Society

    Dec 5, 2024 · 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 …

  6. 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.

  7. What is Earth? - The Institute for Environmental Research and …

    Jun 17, 2025 · Earth, the third planet from the Sun, is a swirling blue and white sphere suspended in the vast darkness of space. Its beauty, captured in countless photographs, belies the …

  8. Earth, our home planet - The Planetary Society

    Earth is the only planet known to support life. It offers liquid water, an oxygen-rich atmosphere, and protection from the Sun’s harmful radiation. By exploring the Cosmos, we learn more …

  9. What is Earth? | AMNH

    From slow creeping continents to ground-splitting quakes, the Earth is constantly changing. Take a peek at our planet's layers, learn what secrets rocks reveal, and gain a long view of history.

  10. Earth | Glenn Research Center | NASA

    Jul 7, 2025 · The Earth is our home planet. It is the third planet from the Sun and orbits the Sun at an average distance of approximately 93 million miles (149 million km). The Earth rotates on …