Read the Astronomy News on p. 177 of Understanding Our Universe, "Curiosity rover sees signs of vanishing Mars atmosphere." (It is also linked below for your convenience.) Prepare your Thread considering this question: The article states that the scientists had carried out this experiment with carbon isotopes, finding similar results. Some might argue that this argon experiment was therefore unnecessary and inefficient. Using what you learned (or review) in Chapter 1 about the scientific method, argue that the argon experiment should have been done