Stars, Galaxies, and Everything

Front

Our galaxy is called

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The Milky Way

Front

Galaxies are composed of (best answer)

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stars, dust, and gas held together by gravity

Front

The Milky Way Galaxy is a

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spiral

Front

The unit used to measure distances within our solar system

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astronomical units

Front

The unit used to measure distances between objects like stars or galaxies is

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light years

Front

Light years are a measure of

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distance

Front

A light year is...

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The distance light can travel in a year

Front

How long does it take light from Proxima Centauri to reach Earth?

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4.3 years

Front

To express the distance between the Milky Way galaxy and the Andromeda galaxy, the most appropriate unit of measure is the

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light year

Front

A supernova is the explosion of a dying: medium-mass star, high-mass star, protostar, low-mass star

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high-mass star