Answer:
Yes, it does contain an argument.
Step-by-step 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.