Complex sentence: On the other hand, a paper published in 2013 by Quinn has refined the chemical explanation, using radiation damaged perchlorates, simulating the radiation environment on Mars and was able to duplicate radioactive 14 CO 2 emission from the sample.
Split into simpler sentences: On the other hand, a paper published in 2013 by Quinn has refined the chemical explanation, using radiation damaged perchlorates. By simulating the radiation environment on Mars, he was able to duplicate radioactive 14 CO 2 emission from the sample.