Podcast
Questions and Answers
Stars begin in ______, which are clouds of gas and dust.
Stars begin in ______, which are clouds of gas and dust.
nebulas
As gravity pulls the gas and dust together, a ______ object forms.
As gravity pulls the gas and dust together, a ______ object forms.
protostellar
When a star runs out of hydrogen, it becomes a ______ and outer layers expand.
When a star runs out of hydrogen, it becomes a ______ and outer layers expand.
red giant
The red giant sheds its outer layers of gas, forming a ______.
The red giant sheds its outer layers of gas, forming a ______.
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Massive stars can eventually become a ______ after a supernova explosion.
Massive stars can eventually become a ______ after a supernova explosion.
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The ______ theory explains the initial state of the universe.
The ______ theory explains the initial state of the universe.
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A period of rapid expansion immediately following the Big Bang is called ______.
A period of rapid expansion immediately following the Big Bang is called ______.
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Hubble's ______ describes the relationship between the distance of a galaxy and its velocity of recession.
Hubble's ______ describes the relationship between the distance of a galaxy and its velocity of recession.
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The ______ of the universe refers to the ongoing increase in its size.
The ______ of the universe refers to the ongoing increase in its size.
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Using a balloon with dots is an example to illustrate the ______ of the universe.
Using a balloon with dots is an example to illustrate the ______ of the universe.
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The ______ is located at the center of the solar system.
The ______ is located at the center of the solar system.
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Pluto is an example of a ______ planet.
Pluto is an example of a ______ planet.
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Asteroids have an ______ and flattened shape.
Asteroids have an ______ and flattened shape.
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Comets are composed of icy ______ that emit a glowing halo.
Comets are composed of icy ______ that emit a glowing halo.
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The solar system began as a ______.
The solar system began as a ______.
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The Milky Way is classified as a ______ barred galaxy.
The Milky Way is classified as a ______ barred galaxy.
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There are 4 main types of galaxies: Elliptical, Spiral, Spiral ______, and Irregular.
There are 4 main types of galaxies: Elliptical, Spiral, Spiral ______, and Irregular.
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Galaxies can have various structures; the ______ type is known for its smooth, featureless light.
Galaxies can have various structures; the ______ type is known for its smooth, featureless light.
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The ______ arms of the Milky Way extend outward from the central bulge.
The ______ arms of the Milky Way extend outward from the central bulge.
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An example of an irregular galaxy does not fit neatly into any of the ______ classifications.
An example of an irregular galaxy does not fit neatly into any of the ______ classifications.
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The innermost region of the Sun is called the ______.
The innermost region of the Sun is called the ______.
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Energy in the radiative zone is primarily transported outward through ______.
Energy in the radiative zone is primarily transported outward through ______.
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The outermost layer of the Sun's atmosphere is known as the ______.
The outermost layer of the Sun's atmosphere is known as the ______.
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Bright structures that extend outward from the Sun's surface are called ______.
Bright structures that extend outward from the Sun's surface are called ______.
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Areas of the photosphere that appear darker due to cooler temperatures are known as ______.
Areas of the photosphere that appear darker due to cooler temperatures are known as ______.
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