According to information received from radio teslescopes, where is our sun positioned in the Milky Way?

All of the following are true if the Milky Way, except that it

Scientists know that the universe is expanding because of

Stars like the Sun will end their life cycle as

How does a blue star differ from a yellow star?

Astronomers have discovered vast differences in stars through their observations. One theory used to explain these differences is that

The statement that the mass of the universe comes entirely from the billions of galaxies which are made of billions of stars is

Which of the following kinds of stars will have average brightness and temperature?

How do elements with atomic numbers greater than that of lithium form?

What holds planets, stars, gas and dust together in a galaxy?

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