Tag Archives: Life

Life on Mars? Teaching Life’s Characteristics and the Process of Science

The start of the semester always gets me thinking about ways to capture student interest in science and biology. Even nonmajors want to know whether life exists on other planets. Mars, of course, is a prime candidate. I have been … Continue reading

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The Asteroid as a Catalyst for Discussion

Earth’s “close encounter” with asteroid 2012 DA14 and the Russian meteor shower on the same day have gotten me thinking about the origin of life. After all, evidence from carbon and nitrogen isotopes suggest that some of life’s key chemical … Continue reading

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