Does the following passage contain an argument?
our theories and hypotheses regarding space and time have changed dramatically in the last few centuries. it was once thought that the sun, other planets, and stars circle around earth, but we now know that the earth circles around the sun. in addition, our solar system is just one tiny part of the milky way galaxy, which in turn is just one galaxy among billions of others that make up the universe.

Yes, it does contain an argument.

Explanation:

In the begining of the passage it states: "Our theories and hypotheses regarding space and time have changed dramatically in the last few centuries." this statement is argumented in the next sentence because is giving the reader valid examples of what the he (the writer) stated, he's showing how the theories and hypotheses have changed when he says we once thought the sun and other plantes circle around Earth and how we now know is not that way, so it does contain an argument.

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