Exploring Earth's Celestial Movements
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Questions and Answers

Which of the following are real motions of our 'spaceship Earth'? Select all that apply.

  • Earth rotates on its axis.
  • Earth moves with the Sun on an orbit around the center of the Milky Way galaxy. (correct)
  • Earth orbits the Moon.
  • Earth revolves around Mars.

    • Which of the following statements about Earth's motion is true?

  • Earth and the Local Group move along with the Local Supercluster on an orbit around the center of the Universe. (correct)
  • Earth orbits the Moon.
  • Earth revolves around Mars.
  • Earth is stationary and does not move.

    • Which of the following motions is associated with Earth's movement in relation to other galaxies?

  • Earth orbits the Moon.
  • Earth revolves around Mars.
  • Earth rotates on its axis.
  • Earth and our solar system move with the Milky Way galaxy relative to other galaxies in our Local Group. (correct)

    • About how long would it take to count all the stars in the Milky Way Galaxy if you could count stars at a rate of about one per second?

    <p>Several thousand years</p> Signup and view all the answers

    Where is our solar system located within the Milky Way Galaxy?

    <p>Roughly halfway between the center and the edge of the visible disk of the galaxy</p> Signup and view all the answers

    If you could count stars at a rate of about one per second, how long would it take to count all the stars in the Milky Way Galaxy?

    <p>Several thousand years</p> Signup and view all the answers

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