Podcast
Questions and Answers
What is the term for a massive collection of stars, gas, and dust held together by gravity?
What is the term for a massive collection of stars, gas, and dust held together by gravity?
- Galaxy bulge
- Galaxy (correct)
- Spiral arm
- Galaxy disk
How many stars does the Milky Way Galaxy approximately contain?
How many stars does the Milky Way Galaxy approximately contain?
- 1 trillion stars
- 200 billion stars (correct)
- 500 billion stars
- 100 billion stars
What is the name of the spiral arm that our Sun is situated in?
What is the name of the spiral arm that our Sun is situated in?
- Cygnus Arm
- Sagittarius Arm
- Orion Arm (correct)
- Perseus Arm
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?
What is the term for the central, spherical part of a galaxy containing older stars?
What is the term for the central, spherical part of a galaxy containing older stars?
What appears as a hazy band of light stretching across the sky when observed from dark, remote areas?
What appears as a hazy band of light stretching across the sky when observed from dark, remote areas?
How many major spiral arms does the Milky Way Galaxy have?
How many major spiral arms does the Milky Way Galaxy have?
What is the term for the flattened region of a galaxy containing most of its stars, dust, and gas?
What is the term for the flattened region of a galaxy containing most of its stars, dust, and gas?
What is the approximate distance across the Milky Way galaxy?
What is the approximate distance across the Milky Way galaxy?
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 are the round fuzzy blobs above and below the plane of the galaxy disk?
What are the round fuzzy blobs above and below the plane of the galaxy disk?
How many globular clusters does the Milky Way have?
How many globular clusters does the Milky Way have?
What is the age of our Sun?
What is the age of our Sun?
What is Proxima Centauri?
What is Proxima Centauri?
What is the distance from Earth to Proxima Centauri?
What is the distance from Earth to Proxima Centauri?
What is a light year?
What is a light year?
Why do astronomers use light years to measure distance in space?
Why do astronomers use light years to measure distance in space?
What is the approximate distance from Earth to the Sun?
What is the approximate distance from Earth to the Sun?
What is the main reason astronomers use units based on the speed of light?
What is the main reason astronomers use units based on the speed of light?
How many times can light travel around the Earth in one second?
How many times can light travel around the Earth in one second?
What is a light hour?
What is a light hour?
How long does it take light to travel from the Sun to the Earth?
How long does it take light to travel from the Sun to the Earth?
What is one light year equal to?
What is one light year equal to?
How long does it take for light from an object one light year away to reach Earth?
How long does it take for light from an object one light year away to reach Earth?
What is the distance from the nearest star to our solar system, Proxima Centauri?
What is the distance from the nearest star to our solar system, Proxima Centauri?
What is a galaxy:
What is a galaxy:
How many galaxies are estimated to be in the Universe?
How many galaxies are estimated to be in the Universe?
What is beyond our Milky Way Galaxy?
What is beyond our Milky Way Galaxy?
What is the approximate distance from the Milky Way to the Andromeda Galaxy?
What is the approximate distance from the Milky Way to the Andromeda Galaxy?
How many stars are typically found in small galaxies?
How many stars are typically found in small galaxies?
What is the shape of elliptical galaxies?
What is the shape of elliptical galaxies?
What is the term for a large collection of galaxies that can span tens of millions of light years?
What is the term for a large collection of galaxies that can span tens of millions of light years?
What is the shape of the Universe on the largest scales?
What is the shape of the Universe on the largest scales?
What is the age of the Universe?
What is the age of the Universe?
What is the term for the vast empty regions between galaxy clusters?
What is the term for the vast empty regions between galaxy clusters?
What is the Local Group part of?
What is the Local Group part of?
Why do astronomers use units based on the speed of light to measure vast distances?
Why do astronomers use units based on the speed of light to measure vast distances?
What is the distance that light travels in one minute?
What is the distance that light travels in one minute?
What is the approximate distance from the Earth to the Moon in light seconds?
What is the approximate distance from the Earth to the Moon in light seconds?
What is the reason for the hazy band of light seen in the night sky?
What is the reason for the hazy band of light seen in the night sky?
What is the term for the large-scale structure of the universe, composed of galaxy clusters arranged in a thread-like formation?
What is the term for the large-scale structure of the universe, composed of galaxy clusters arranged in a thread-like formation?
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 is the term for the vast, empty regions of space with very few galaxies?
What is the term for the vast, empty regions of space with very few galaxies?
How many galaxies are estimated to be in the Universe?
How many galaxies are estimated to be in the Universe?
What is the approximate age of the oldest stars in the globular clusters?
What is the approximate age of the oldest stars in the globular clusters?
Why do astronomers use units based on the speed of light to measure vast distances?
Why do astronomers use units based on the speed of light to measure vast distances?
What is the term for a small collection of galaxies bound by gravity?
What is the term for a small collection of galaxies bound by gravity?
What is the distance that light travels in one year?
What is the distance that light travels in one year?
What is the name of the constellation that is easily visible from South Africa, even in urban areas?
What is the name of the constellation that is easily visible from South Africa, even in urban areas?
What is the term for a grouping of stars that, when observed from Earth, forms a recognizable pattern?
What is the term for a grouping of stars that, when observed from Earth, forms a recognizable pattern?
What is the approximate distance from Earth to Proxima Centauri?
What is the approximate distance from Earth to Proxima Centauri?
What is the distance that light travels in one minute?
What is the distance that light travels in one minute?
Why does it take four years for light from Proxima Centauri to reach Earth?
Why does it take four years for light from Proxima Centauri to reach Earth?
What is the name of the star system that consists of Alpha Centauri A, Alpha Centauri B, and Proxima Centauri?
What is the name of the star system that consists of Alpha Centauri A, Alpha Centauri B, and Proxima Centauri?
What is the approximate distance from Earth to the Sun?
What is the approximate distance from Earth to the Sun?
What is the reason for the visibility of only a fraction of stars from urban areas?
What is the reason for the visibility of only a fraction of stars from urban areas?
What is the main characteristic of the stars found in the galactic bulge?
What is the main characteristic of the stars found in the galactic bulge?
What is the purpose of observing the Milky Way from dark, remote areas?
What is the purpose of observing the Milky Way from dark, remote areas?
What is the main component of the galactic disk?
What is the main component of the galactic disk?
What is the pattern of movement of the stars within the Milky Way?
What is the pattern of movement of the stars within the Milky Way?
What is the characteristic of the spiral arms in the Milky Way?
What is the characteristic of the spiral arms in the Milky Way?
What is the appearance of the galaxy when observed from above?
What is the appearance of the galaxy when observed from above?
What is the characteristic of the dark wisps in the galactic disk?
What is the characteristic of the dark wisps in the galactic disk?
What is the origin of the name 'Milky Way'?
What is the origin of the name 'Milky Way'?
What is the main characteristic of spiral galaxies?
What is the main characteristic of spiral galaxies?
What is the term for a collection of galaxies that can span tens of millions of light years?
What is the term for a collection of galaxies that can span tens of millions of light years?
What is the shape of the Universe on the largest scales?
What is the shape of the Universe on the largest scales?
What is the term for the vast empty regions between galaxy clusters?
What is the term for the vast empty regions between galaxy clusters?
How many types of galaxies are there?
How many types of galaxies are there?
What is the approximate distance from the Milky Way to the Andromeda Galaxy?
What is the approximate distance from the Milky Way to the Andromeda Galaxy?
What is the term for a small collection of galaxies?
What is the term for a small collection of galaxies?
What is the age of the Universe?
What is the age of the Universe?
What is the main advantage of using units based on the speed of light to measure vast distances?
What is the main advantage of using units based on the speed of light to measure vast distances?
What is the approximate distance from the Earth to the Moon in light seconds?
What is the approximate distance from the Earth to the Moon in light seconds?
What is the term for the large-scale structure of the universe, composed of galaxy clusters arranged in a thread-like formation?
What is the term for the large-scale structure of the universe, composed of galaxy clusters arranged in a thread-like formation?
What is the approximate distance from the nearest star to our solar system, Proxima Centauri?
What is the approximate distance from the nearest star to our solar system, Proxima Centauri?
What is the term for the vast, empty regions of space with very few galaxies?
What is the term for the vast, empty regions of space with very few galaxies?
How many galaxies are estimated to be in the Universe?
How many galaxies are estimated to be in the Universe?
What is the distance that light travels in one year?
What is the distance that light travels in one year?
What is the term for a small collection of galaxies bound by gravity?
What is the term for a small collection of galaxies bound by gravity?
What is the approximate distance that light can travel around the Earth in one second?
What is the approximate distance that light can travel around the Earth in one second?
What is the term for a massive collection of stars, gas, and dust held together by gravity?
What is the term for a massive collection of stars, gas, and dust held together by gravity?
What is the characteristic of the stars found in elliptical galaxies?
What is the characteristic of the stars found in elliptical galaxies?
What is the structure of the Universe on the largest scales?
What is the structure of the Universe on the largest scales?
What is the term for the vast empty regions between galaxy clusters?
What is the term for the vast empty regions between galaxy clusters?
What is the characteristic of lenticular galaxies?
What is the characteristic of lenticular galaxies?
What is the term for the large-scale structure of the universe, composed of galaxy clusters?
What is the term for the large-scale structure of the universe, composed of galaxy clusters?
What is the approximate distance from the Milky Way to the Andromeda Galaxy?
What is the approximate distance from the Milky Way to the Andromeda Galaxy?
What is the characteristic of barred spiral galaxies?
What is the characteristic of barred spiral galaxies?
What is the term for the collection of galaxies that the Milky Way is part of?
What is the term for the collection of galaxies that the Milky Way is part of?
What is the approximate time it takes for the Sun to complete one orbit around the galactic center?
What is the approximate time it takes for the Sun to complete one orbit around the galactic center?
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 age of the oldest stars in the globular clusters?
What is the age of the oldest stars in the globular clusters?
What is the term for the distance that light travels in one minute?
What is the term for the distance that light travels in one minute?
What is the term for the grouping of stars that forms a recognizable pattern when observed from Earth?
What is the term for the grouping of stars that forms a recognizable pattern when observed from Earth?
What is the approximate distance from Earth to the nearest star, Proxima Centauri?
What is the approximate distance from Earth to the nearest star, Proxima Centauri?
What is the term for the brightest star among the Pointers in the Southern Cross constellation?
What is the term for the brightest star among the Pointers in the Southern Cross constellation?
What is the approximate distance across the Milky Way galaxy?
What is the approximate distance across the Milky Way galaxy?
What is the term for the round fuzzy blobs above and below the plane of the galaxy disk?
What is the term for the round fuzzy blobs above and below the plane of the galaxy disk?
What is the number of globular clusters in the Milky Way galaxy?
What is the number of globular clusters in the Milky Way galaxy?
What is the primary characteristic that distinguishes the galactic bulge from the galactic disk?
What is the primary characteristic that distinguishes the galactic bulge from the galactic disk?
What is the significance of the spiral arms in the Milky Way galaxy?
What is the significance of the spiral arms in the Milky Way galaxy?
What is the result of the Milky Way galaxy's structure when observed from above?
What is the result of the Milky Way galaxy's structure when observed from above?
What is the primary component of the dark wisps observed in the galactic disk?
What is the primary component of the dark wisps observed in the galactic disk?
What is the motion of the stars within the Milky Way galaxy?
What is the motion of the stars within the Milky Way galaxy?
What is the characteristic of the stars found in the galactic bulge?
What is the characteristic of the stars found in the galactic bulge?
What is the significance of the Milky Way galaxy's appearance when observed from dark, remote areas?
What is the significance of the Milky Way galaxy's appearance when observed from dark, remote areas?
What is the relationship between the Orion Arm and the other major spiral arms?
What is the relationship between the Orion Arm and the other major spiral arms?
What is a characteristic of spiral galaxies?
What is a characteristic of spiral galaxies?
What is the term for the thin walls of galaxy clusters in the universe's large-scale structure?
What is the term for the thin walls of galaxy clusters in the universe's large-scale structure?
What is the term for the collection of galaxies that the Milky Way is part of?
What is the term for the collection of galaxies that the Milky Way is part of?
What is the approximate distance that light could travel in the age of the universe?
What is the approximate distance that light could travel in the age of the universe?
What is the term for the vast, empty regions of space with very few galaxies?
What is the term for the vast, empty regions of space with very few galaxies?
What is the term for the large-scale structure of the universe, composed of galaxy clusters arranged in a thread-like formation?
What is the term for the large-scale structure of the universe, composed of galaxy clusters arranged in a thread-like formation?
What is the term for a galaxy that does not fit into the other categories and has an irregular shape?
What is the term for a galaxy that does not fit into the other categories and has an irregular shape?
What is the term for the formation of many galaxy clusters coming together?
What is the term for the formation of many galaxy clusters coming together?
What is the approximate time it takes for the Sun to complete one orbit around the galactic center?
What is the approximate time it takes for the Sun to complete one orbit around the galactic center?
What is the term for the grouping of stars that forms a recognizable pattern when observed from Earth?
What is the term for the grouping of stars that forms a recognizable pattern when observed from Earth?
What is the distance that light travels in one hour?
What is the distance that light travels in one hour?
What is the age of the oldest stars in the globular clusters?
What is the age of the oldest stars in the globular clusters?
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 is the term for the round fuzzy blobs above and below the plane of the galaxy disk?
What is the term for the round fuzzy blobs above and below the plane of the galaxy disk?
What is the approximate distance from Earth to the nearest star, Proxima Centauri?
What is the approximate distance from Earth to the nearest star, Proxima Centauri?
What is the term for the grouping of stars that forms a recognizable pattern, easily visible from South Africa, even in urban areas?
What is the term for the grouping of stars that forms a recognizable pattern, easily visible from South Africa, even in urban areas?
What is the approximate distance across the Milky Way galaxy?
What is the approximate distance across the Milky Way galaxy?
What is the term for the units of measurement based on the speed of light, used to measure vast distances in space?
What is the term for the units of measurement based on the speed of light, used to measure vast distances in space?
What is the primary reason astronomers use light minutes and light hours to measure distances within the solar system?
What is the primary reason astronomers use light minutes and light hours to measure distances within the solar system?
What is the approximate distance light travels in one second?
What is the approximate distance light travels in one second?
What is the primary reason why the stars in the Milky Way galaxy are visible from Earth?
What is the primary reason why the stars in the Milky Way galaxy are visible from Earth?
What is the term for the vast, empty regions of space with very few galaxies?
What is the term for the vast, empty regions of space with very few galaxies?
What is the characteristic of the stars found in the galactic bulge of the Milky Way?
What is the characteristic of the stars found in the galactic bulge of the Milky Way?
What is the approximate distance from the Earth to the nearest star outside of our solar system, Proxima Centauri?
What is the approximate distance from the Earth to the nearest star outside of our solar system, Proxima Centauri?
How long does it take for light from an object one light hour away to reach Earth?
How long does it take for light from an object one light hour away to reach Earth?
What is the shape of the Milky Way galaxy when viewed from a remote location?
What is the shape of the Milky Way galaxy when viewed from a remote location?
What is the term for the large-scale structure of the universe, composed of galaxy clusters arranged in a thread-like formation?
What is the term for the large-scale structure of the universe, composed of galaxy clusters arranged in a thread-like formation?
What is the purpose of the term 'galaxy disk' in the context of the Milky Way?
What is the purpose of the term 'galaxy disk' in the context of the Milky Way?
What is the estimated number of galaxies in the Universe?
What is the estimated number of galaxies in the Universe?
What is the characteristic of the spiral arms in the Milky Way galaxy?
What is the characteristic of the spiral arms in the Milky Way galaxy?
What is the movement of the stars in the Milky Way galaxy?
What is the movement of the stars in the Milky Way galaxy?
How many times can light travel around the Earth in one second?
How many times can light travel around the Earth in one second?
What is the distance that light travels in one year?
What is the distance that light travels in one year?
What is the appearance of the Milky Way galaxy when observed from dark, remote areas?
What is the appearance of the Milky Way galaxy when observed from dark, remote areas?
Why do astronomers use units based on the speed of light to measure vast distances?
Why do astronomers use units based on the speed of light to measure vast distances?
What is the relationship between the Sun and the Milky Way galaxy?
What is the relationship between the Sun and the Milky Way galaxy?
What is the shape of the Milky Way Galaxy when observed from above?
What is the shape of the Milky Way Galaxy when observed from above?
What is the purpose of the galaxy disk?
What is the purpose of the galaxy disk?
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 function of spiral arms in the Milky Way Galaxy?
What is the function of spiral arms in the Milky Way Galaxy?
What is the apparent appearance of the Milky Way Galaxy from dark, remote areas?
What is the apparent appearance of the Milky Way Galaxy from dark, remote areas?
What is the motion of the stars in the Milky Way Galaxy?
What is the motion of the stars in the Milky Way Galaxy?
What is the characteristic of the dark wisps in the galaxy disk?
What is the characteristic of the dark wisps in the galaxy disk?
What is the name given to the Milky Way Galaxy by the Romans?
What is the name given to the Milky Way Galaxy by the Romans?
What is the approximate distance that the Sun travels to complete one orbit around the galactic center?
What is the approximate distance that the Sun travels 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 is the term for the grouping of stars that, when observed from Earth, forms a recognizable pattern?
What is the term for the grouping of stars that, when observed from Earth, forms a recognizable pattern?
What is the approximate age of the oldest stars in the globular clusters?
What is the approximate age of the oldest stars in the globular clusters?
What is the term for the distance that light travels in one minute?
What is the term for the distance that light travels in one minute?
What is the approximate distance from Earth to the nearest star, Proxima Centauri?
What is the approximate distance from Earth to the nearest star, Proxima Centauri?
What is the term for the dense concentration of stars in the Sagittarius Arm?
What is the term for the dense concentration of stars in the Sagittarius Arm?
What is the term for the triple star system consisting of Alpha Centauri A, Alpha Centauri B, and Proxima Centauri?
What is the term for the triple star system consisting of Alpha Centauri A, Alpha Centauri B, and Proxima Centauri?
What is the approximate distance from Earth to the Sun?
What is the approximate distance from Earth to the Sun?
What is the term for the round fuzzy blobs above and below the plane of the galaxy disk?
What is the term for the round fuzzy blobs above and below the plane of the galaxy disk?
What is the distance that light travels in one hour?
What is the distance that light travels in one hour?
How long does it take light to travel from the Earth to the Moon?
How long does it take light to travel from the Earth to the Moon?
What is the approximate distance of the nearest star to our solar system, Proxima Centauri?
What is the approximate distance of the nearest star to our solar system, Proxima Centauri?
What is the term for the large-scale structure of the universe, composed of galaxy clusters arranged in a thread-like formation?
What is the term for the large-scale structure of the universe, composed of galaxy clusters arranged in a thread-like formation?
How long does it take light from an object one light hour away to reach Earth?
How long does it take light from an object one light hour away to reach Earth?
What is the approximate distance of one light year?
What is the approximate distance of one light year?
How many times can light travel around the Earth in one second?
How many times can light travel around the Earth in one second?
What is the term for the vast, empty regions of space with very few galaxies?
What is the term for the vast, empty regions of space with very few galaxies?
What is the approximate distance from Earth to the Sun?
What is the approximate distance from Earth to the Sun?
How many galaxies are estimated to be in the Universe?
How many galaxies are estimated to be in the Universe?
What is the approximate number of stars found in small galaxies?
What is the approximate number of stars found in small galaxies?
What is the shape of elliptical galaxies?
What is the shape of elliptical galaxies?
What is the term for a large collection of galaxies?
What is the term for a large collection of galaxies?
What is the shape of the Universe on the largest scales?
What is the shape of the Universe on the largest scales?
What is the term for the vast empty regions between galaxy clusters?
What is the term for the vast empty regions between galaxy clusters?
What is the Local Group part of?
What is the Local Group part of?
What is the approximate age of the Universe?
What is the approximate age of the Universe?
What is the term for a small collection of galaxies bound by gravity?
What is the term for a small collection of galaxies bound by gravity?