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Where actually is Earth? Do we even know where we are half the time?

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  • 11 months ago

    The Earth is the third planet from the Sun. ;Solar System

    The Sun(Solar system) is in an arm of a Spiral Galaxy ; the Milky Way.

    So the Earth is in the Milky Way Galaxy.

    The Milky Way Galaxy is only one of millions of galaxies in the universe.

    There are no known limits to the Universe.

    • John P
      Lv 7
      11 months agoReport

      In one sense nobody knows at any time, since nobody knows where the edge of our universe is! And thus we cannot know where we are in the unknown cosmos. But in practical terms, science can calculate very closely where Earth and all the planets are, at any date and time, in relation to the Sun.

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  • 11 months ago

    Where is Earth? Look under your feet.

    If you don't know where you are sometimes, that's a different issue.

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  • 11 months ago

    Yes, some people do know exactly where Earth is relative to the Sun and the rest of the Milky Way and the Local Group and super cluster.

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  • Anonymous
    11 months ago

    Earth is the third planet from the sun, right where it is supposed to be, troll

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  • 11 months ago

    By using radio transmissions time, and radar reflections off another planet, images of stars in telescopes, astronomers can fix position of Earth around the sun to within a few feet. This is necessary to calculate and control the paths of probes to moon, asteroids, and other planets.

    As far as going around the Milky Way, the solar system, an entity almost a lightyear wide, takes 220 million years for one trip. Astronomers can only fix the relative position of the sun to other stars (also moving) to within just a fraction of a light year, not much better. A projection of the path is uncertain because of inaccuracies of measurements and the great distances involved.

    The Milky Way galaxy is in a group of many. Its companions, the LMC and SMC, and some other fainter dwarfs are proceeding toward M31 galaxy in Andromeda, another large spiral. The glancing collision that will happen in a few billion years was recently updated with a better estimate.

    The Local Group of galaxies is moving toward the Virgo cluster of even more members. That bunch is moving toward "The Great Attractor" somewhere beyond Virgo. Exact measurements on position and directions are not possible now. Speed estimates can be made from Doppler effect on light beams from stars.

    Source(s): 65 years of studying Astronomy. My cousin's husband works at JPL. He was on communications teams for planetary probes. Now he is a manager for the JPL giant radio telescopes around the Earth.
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  • Anonymous
    11 months ago

    i'm here , you are there .

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  • ?
    Lv 7
    11 months ago

    Relative to what? We can more or less calculate our position relative to the galactic centre, but we havent fully mapped the universe, so we dont know where we are relative to everything else

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  • 11 months ago

    Earth is currently orbiting the Sun, along with the other planets, moons and debris in the system.

    The entire system rotates around the center of the Milky Way Galaxy, which takes tens(?) of thousands of years to complete one go-around.

    The Mily Way Galaxy is also moving inside the known universe. Where exactly in the universe is anyone's guess.

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