Gas and dust in interstellar nebulae can form

What element is the main component of most stars?

A star might be much brighter than it appears to be. This is called the star's absolute magnitude. The difference in apparent magnitude and absolute magnitude is due primarily to the star's

What is the first stage in the life cycle of a star?

Which layer of the sun is most dense?

What type of galaxy is our Milky Way?

Which property of a star tells us the composition of that Star?

Which of these facts is the best supporting evidence that the universe is expanding?

Which of the following is the correct order of stages in the life cycle of our Sun?

A star that explodes is known as a

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