Which statements describe elliptical galaxies? Select the two correct answers.(1 point)
Responses
They include the Milky Way.
They include the Milky Way.
They are the most common galaxy type.
They are the most common galaxy type.
They include the universe's largest galaxies.
They include the universe's largest galaxies.
They typically contain very little gas and dust.
5 answers
They typically contain very little gas and dust.
How does the appearance of spiral galaxies vary? Select the two correct answers.(1 point)
Responses
They vary in the brightness of stars located on their arms.
They vary in the brightness of stars located on their arms.
They vary in how tightly their arms are wound.
They vary in how tightly their arms are wound.
Some are more elongated in shape than others.
Some are more elongated in shape than others.
Some have a band of stars and materials through their middle, but others do not.
Responses
They vary in the brightness of stars located on their arms.
They vary in the brightness of stars located on their arms.
They vary in how tightly their arms are wound.
They vary in how tightly their arms are wound.
Some are more elongated in shape than others.
Some are more elongated in shape than others.
Some have a band of stars and materials through their middle, but others do not.
Some are more elongated in shape than others.
Some have a band of stars and materials through their middle, but others do not.
Some have a band of stars and materials through their middle, but others do not.
According to astronomers, how many galaxies are distributed across the observable universe?(1 poin
According to astronomers, there are estimated to be billions of galaxies distributed across the observable universe.
7 answers