Understanding the Milky Way Galaxy
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Questions and Answers

What did astronomers only start to piece together in the early 1900s?

  • The true nature of our galaxy (correct)
  • The location of the Milky Way in the universe
  • The number of stars in the Milky Way
  • The composition of the Milky Way

    • How does the Milky Way galaxy appear to the naked eye from Earth's surface?

  • As a collection of bright stars
  • As a dark void in the sky
  • As a nebulous band across the sky (correct)
  • As a distinct spiral shape

    • What has limited astronomers' understanding of the Milky Way?

  • The interference of other galaxies
  • The lack of advanced telescopes
  • The complexity of the Milky Way
  • Our limited vantage point (correct)

    • What is illustrated in the image credit provided in the text?

    <p>Our galaxy, the Milky Way seen obliquely</p> Signup and view all the answers

    What did it take a lot of work to capture according to the text?

    <p>A sketch of the Milky Way</p> Signup and view all the answers

    What is credited for capturing some truly stunning images of the Milky Way?

    <p>Our telescopes</p> Signup and view all the answers

    Who was the first to discover the true nature of the Milky Way galaxy?

    <p>Galileo Galilei</p> Signup and view all the answers

    What did Immanuel Kant correctly guess about the Milky Way in the mid-1700s?

    <p>It was a rotating disk of stars</p> Signup and view all the answers

    Who discovered that the Andromeda nebula was, in fact, the Andromeda galaxy?

    <p>Edwin Hubble</p> Signup and view all the answers

    What is the main mission of the Gaia spacecraft?

    <p>To catalog as many stars as possible</p> Signup and view all the answers

    What is one of the challenges in directly mapping the Milky Way?

    <p>Presence of interstellar dust</p> Signup and view all the answers

    What is the role of globular clusters in mapping the Milky Way?

    <p>Estimating the distance to the center of the Milky Way</p> Signup and view all the answers

    What do we know about the spiral arms of the Milky Way?

    <p>They are denser than their surroundings</p> Signup and view all the answers

    What does the text suggest about current maps of the Milky Way?

    <p>They are mostly conjecture and likely to change over time</p> Signup and view all the answers

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