Galaxies

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What are galaxies?

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Galaxies are vast systems that consist of stars, gas, dust, and dark matter, bound together by gravity.

Tags

NGSS.MS-ESS1-2

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What is a galactic cluster?

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A galactic cluster is a group of galaxies that are held together by gravity.

Front

What force pulls stars together in galaxies?

Back

Gravity pulls stars together in galaxies.

Tags

NGSS.HS-PS2-4

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What are the main components found in galaxies?

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The main components found in galaxies are dust, gas, and stars.

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What is a Spiral Galaxy?

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A Spiral Galaxy is a type of galaxy characterized by its spiral arms that wind outward from the center.

Tags

NGSS.MS-ESS1-2

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What is an Elliptical Galaxy?

Back

An Elliptical Galaxy is a type of galaxy that has an oval shape and lacks the distinct arms of spiral galaxies.

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What is an Irregular Galaxy?

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An Irregular Galaxy is a type of galaxy that does not have a defined shape or structure.

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What is a Barred Spiral Galaxy?

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A Barred Spiral Galaxy is a spiral galaxy with a central bar-shaped structure made of stars.

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What is dark matter?

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Dark matter is a form of matter that does not emit light or energy, making it invisible, but it exerts gravitational effects on visible matter.

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What is the Milky Way?

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The Milky Way is the galaxy that contains our Solar System, characterized as a barred spiral galaxy.