The Milky Way and Other Galaxies Flashcards

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1
Q

What is a Galaxy?

A

A collection of stars, dust, and gas bound by gravity.

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2
Q

What is a Cluster?

A

A group of stars or galaxies bound by gravity.

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3
Q

What is a SuperCluster?

A

A very large group of galaxies bound by gravity.

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4
Q

What are the three types of Galaxies?

A

Spiral, Elliptical, and Irregular.

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5
Q

What is Interstellar Matter?

A

The gas and dust located between stars in a galaxy.

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6
Q

What is a Quasar?

A

Very luminous objects that produce energy at a high rate and are thought to be the most distant objects in the universe.

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7
Q

How do Galaxies change over time?

A

Galaxies can interact with each other with gravitation and change shape.

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