Astronomy 4 Text questions

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Describe the Milky Way. What does it contain?
How are galaxies organized and distributed within the universe?
How is gravity important to the galaxies within our universe?
How do galaxies vary?
What forces shape the stars in galaxies?
CRITICAL THINKING QUESTIONS
How do galaxies change over time?
How are galaxies created?
How was Hubble important to our understanding of galaxies?
How does the Milky Way compare with other galaxies within the universe?
How do gravity and dark matter shape the galaxies and affect their environment?

Solution Preview

1. Describe the Milky Way. What does it contain?
The Milky Way refers to a coiled, spiral or twisted galaxy, which contains four main spiral arms known as Perseus, Cygnus, Centaurus, and Sagittarius which are full of vast clusters of stars, dust, planetary systems, as well as gas attached and fashioned by gravity (Bok, 1981 ). The solar system dwells in this Milky Way which is situated in a tiny branch of the Sagittarius arm

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