What is Earth?

  • (noun): Once thought to be one of four elements composing the universe (Empedocles).
    See also — Additional definitions below

Earth

Earth is the third planet from the Sun, and the densest and fifth-largest of the eight planets in the Solar System. It is also the largest of the Solar System's four terrestrial planets. It is sometimes referred to as the world, the Blue Planet, or by its Latin name, Terra.

Read more about Earth.

Some articles on Earth:

Persephone - Greek Mythology - Abduction Myth
... abduct her, bursting through a cleft in the earth ... disappeared, searched for her all over the earth with torches ... In most versions she forbids the earth to produce, or she neglects the earth and in the depth of her despair she causes nothing to grow ...
2004 FH
2004 FH is a near-Earth asteroid that was discovered on March 15, 2004, by the NASA-funded LINEAR asteroid survey ... passed just 43,000 km (27,000 mi) above the Earth's surface on March 18, 2004, at 2208 UTC making it the 11th closest approach to Earth recorded as of 21 November 2008 (2008 -11-21) (see the diagram below) ... For comparison, geostationary satellites orbit Earth at 35,790 km ...
Earth - Cultural Viewpoint
... Main article Earth in culture The standard astronomical symbol of the Earth consists of a cross circumscribed by a circle ... the rest of the planets in the Solar System, humankind did not begin to view the Earth as a moving object in orbit around the Sun until the 16th century ... Earth has often been personified as a deity, in particular a goddess ...
Gravitational Constant - The GM Product
... of the gravitational constant and the mass of a given astronomical body such as the Sun or the Earth—is known as the standard gravitational parameter and is denoted ... Also, for celestial bodies such as the Earth and the Sun, the value of the product GM is known more accurately than each factor independently ... For Earth, using M⊕ as the symbol for the mass of the Earth, we have Calculations in celestial mechanics can also be carried out using the unit of solar mass rather than the ...
2004 AS1
2004 AS1 (also written 2004 AS1), also known by the temporary name AL00667, is a near-Earth asteroid, first discovered on January 13, 2004, by the LINEAR ... by the Minor Planet Center (MPC) suggesting an imminent collision with Earth on or about January 15 with a likelihood of 14 ... passed at a distance of 12 Gm (or 32 times the distance from the Earth to the Moon), posing no threat ...

More definitions of "Earth":

  • (verb): Hide in the earth like a hunted animal.
  • (noun): The loose soft material that makes up a large part of the land surface.
    Example: "They dug into the earth outside the church"
    Synonyms: ground
  • (noun): The abode of mortals (as contrasted with heaven or hell).
    Example: "It was hell on earth"
  • (noun): A connection between an electrical device and the earth (which is a zero voltage).
    Synonyms: ground
  • (verb): Connect to the earth.
    Example: "Earth the circuit"
  • (noun): The 3rd planet from the sun; the planet on which we live.
    Example: "The Earth moves around the sun"
    Synonyms: world, globe

Famous quotes containing the word earth:

    “I traveld thro’ a Land of Men
    A Land of Men & Women too,
    And heard & saw such dreadful things
    As cold Earth wanderers never knew.”
    —William Blake (1757–1827)

    “The visible heavens and earth sympathize with Jesus.”
    —Ralph Waldo Emerson (1803–1882)

    “We will not be put off the final goal
    We have it hidden in us to attain,
    Not though we have to seize the earth by the pole
    And, tired of aimless circling in one place,
    Steer straight off after something into space.”
    —Robert Frost (1874–1963)