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Define cosmic background radiation
The observation of distant objects turning red
The brightness of a star as viewed from an observer compared to the Sun.
The early stage of a star's existence where most of its life is spent.
The size of an object
The body which encompasses all other objects
The spherical shaped Milky Way, which the Solar System is a part of.
The Sun, eight planets, and all objects held by the Sun's gravity
The left over microwave energy observed potentially from the Big Bang
Define Solar System
The observation of distant objects turning red
The brightness of a star as viewed from an observer compared to the Sun.
The early stage of a star's existence where most of its life is spent.
The size of an object
The body which encompasses all other objects
The spherical shaped Milky Way, which the Solar System is a part of.
The Sun, eight planets, and all objects held by the Sun's gravity
The left over microwave energy observed potentially from the Big Bang
Define Redshift
The observation of distant objects turning red
The brightness of a star as viewed from an observer compared to the Sun.
The early stage of a star's existence where most of its life is spent.
The size of an object
The body which encompasses all other objects
The spherical shaped Milky Way, which the Solar System is a part of.
The Sun, eight planets, and all objects held by the Sun's gravity
The left over microwave energy observed potentially from the Big Bang
Define the word luminosity
The observation of distant objects turning red
The brightness of a star as viewed from an observer compared to the Sun.
The early stage of a star's existence where most of its life is spent.
The size of an object
The body which encompasses all other objects
The spherical shaped Milky Way, which the Solar System is a part of.
The Sun, eight planets, and all objects held by the Sun's gravity
The left over microwave energy observed potentially from the Big Bang
Define Universe
The observation of distant objects turning red
The brightness of a star as viewed from an observer compared to the Sun.
The early stage of a star's existence where most of its life is spent.
The size of an object
The body which encompasses all other objects
The spherical shaped Milky Way, which the Solar System is a part of.
The Sun, eight planets, and all objects held by the Sun's gravity
The left over microwave energy observed potentially from the Big Bang
Define Galaxy
The observation of distant objects turning red
The brightness of a star as viewed from an observer compared to the Sun.
The early stage of a star's existence where most of its life is spent.
The size of an object
The body which encompasses all other objects
The spherical shaped Milky Way, which the Solar System is a part of.
The Sun, eight planets, and all objects held by the Sun's gravity
The left over microwave energy observed potentially from the Big Bang
Mass
The observation of distant objects turning red
The brightness of a star as viewed from an observer compared to the Sun.
The early stage of a star's existence where most of its life is spent.
The size of an object
The body which encompasses all other objects
The spherical shaped Milky Way, which the Solar System is a part of.
The Sun, eight planets, and all objects held by the Sun's gravity
The left over microwave energy observed potentially from the Big Bang
What is a main sequence star?
The observation of distant objects turning red
The brightness of a star as viewed from an observer compared to the Sun.
The early stage of a star's existence where most of its life is spent.
The size of an object
The body which encompasses all other objects
The spherical shaped Milky Way, which the Solar System is a part of.
The Sun, eight planets, and all objects held by the Sun's gravity
The left over microwave energy observed potentially from the Big Bang
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