Podcast
Questions and Answers
What is the definition of a galaxy?
What is the definition of a galaxy?
- A small collection of stars, gas, and dust
- A massive collection of stars, gas, and dust held together by gravity (correct)
- A region of space devoid of stars and gas
- A type of black hole
What is the name of the arm where our Sun is situated?
What is the name of the arm where our Sun is situated?
- Norma Arm
- Cygnus Arm
- Sagittarius Arm
- Orion Arm (correct)
What is the speed at which our Solar System travels around the galaxy's center?
What is the speed at which our Solar System travels around the galaxy's center?
- 1000 km/s
- 250 km/s (correct)
- 500 km/s
- 100 km/s
What is the name of the central part of the galaxy?
What is the name of the central part of the galaxy?
What is the name of the region filled with dust, gas, and hot young stars?
What is the name of the region filled with dust, gas, and hot young stars?
How many major spiral arms does the Milky Way have?
How many major spiral arms does the Milky Way have?
What is the name of the ancient Greek term for the Milky Way?
What is the name of the ancient Greek term for the Milky Way?
What appears as dark wisps in the bluish regions of the galaxy?
What appears as dark wisps in the bluish regions of the galaxy?
How long does it take the Sun to complete one orbit around the galactic center?
How long does it take the Sun to complete one orbit around the galactic center?
What is the shape of the Milky Way galaxy when viewed from the side?
What is the shape of the Milky Way galaxy when viewed from the side?
What can be seen above and below the plane of the galaxy disk?
What can be seen above and below the plane of the galaxy disk?
What is the approximate age of the oldest stars in the Milky Way's globular clusters?
What is the approximate age of the oldest stars in the Milky Way's globular clusters?
What is the hazy band of light seen in the night sky when observing the Milky Way from Earth?
What is the hazy band of light seen in the night sky when observing the Milky Way from Earth?
How many globular clusters does the Milky Way have?
How many globular clusters does the Milky Way have?
What is the primary force that holds the Milky Way galaxy together?
What is the primary force that holds the Milky Way galaxy together?
What is the approximate number of stars in the Milky Way galaxy?
What is the approximate number of stars in the Milky Way galaxy?
What is the characteristic of the stars in the galactic bulge?
What is the characteristic of the stars in the galactic bulge?
What is the shape of the Milky Way galaxy when viewed from above?
What is the shape of the Milky Way galaxy when viewed from above?
What is the purpose of the galaxy's spiral arms?
What is the purpose of the galaxy's spiral arms?
What is the movement of stars in the Milky Way galaxy?
What is the movement of stars in the Milky Way galaxy?
What can be observed from Earth when viewing the Milky Way galaxy?
What can be observed from Earth when viewing the Milky Way galaxy?
What is the characteristic of the galaxy disk?
What is the characteristic of the galaxy disk?
What is the main reason why it takes so long for the Sun to complete one orbit around the galactic center?
What is the main reason why it takes so long for the Sun to complete one orbit around the galactic center?
What can be observed in the Sagittarius Arm when looking towards the galaxy's center?
What can be observed in the Sagittarius Arm when looking towards the galaxy's center?
What is the characteristic of the stars found in globular clusters?
What is the characteristic of the stars found in globular clusters?
What is the age of our Sun compared to the oldest stars in the Milky Way's globular clusters?
What is the age of our Sun compared to the oldest stars in the Milky Way's globular clusters?
What is the shape of the Milky Way galaxy when viewed from an angle?
What is the shape of the Milky Way galaxy when viewed from an angle?
What can be seen above and below the plane of the galaxy disk?
What can be seen above and below the plane of the galaxy disk?
What is the primary reason why the Milky Way appears as a hazy band of light in the night sky?
What is the primary reason why the Milky Way appears as a hazy band of light in the night sky?
What is the characteristic of the stars in the Norma Arm?
What is the characteristic of the stars in the Norma Arm?
What is the purpose of the galaxy's central bulge?
What is the purpose of the galaxy's central bulge?
What is the movement of the stars in the Milky Way galaxy with respect to the galaxy's center?
What is the movement of the stars in the Milky Way galaxy with respect to the galaxy's center?
What is the characteristic of the galaxy disk?
What is the characteristic of the galaxy disk?
What is the reason why the Milky Way galaxy appears as a giant spiral when viewed from above?
What is the reason why the Milky Way galaxy appears as a giant spiral when viewed from above?
What is the characteristic of the stars in the galaxy bulge?
What is the characteristic of the stars in the galaxy bulge?
What is the primary force that holds the Milky Way galaxy together?
What is the primary force that holds the Milky Way galaxy together?
What is the primary reason why the Milky Way galaxy appears as a giant fried egg when viewed from the side?
What is the primary reason why the Milky Way galaxy appears as a giant fried egg when viewed from the side?
What is the significance of the globular clusters in the Milky Way galaxy?
What is the significance of the globular clusters in the Milky Way galaxy?
What is the relationship between the age of the oldest stars in the Milky Way's globular clusters and the age of the Universe?
What is the relationship between the age of the oldest stars in the Milky Way's globular clusters and the age of the Universe?
What is the significance of the Sagittarius Arm in the Milky Way galaxy?
What is the significance of the Sagittarius Arm in the Milky Way galaxy?
What is the primary reason why the Milky Way galaxy takes approximately 225 million years to complete one orbit around the galactic center?
What is the primary reason why the Milky Way galaxy takes approximately 225 million years to complete one orbit around the galactic center?
What is the significance of the age of our Sun compared to the oldest stars in the Milky Way's globular clusters?
What is the significance of the age of our Sun compared to the oldest stars in the Milky Way's globular clusters?
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