A cosmic perspective on carbon—its importance in the universe and our livesWhen we think of carbon, we might first think of a simple element near the top of the periodic table: symbol C, atomic number 6. Alternatively, we might think of something more tangible—a sooty piece of coal or a sparkling diamond, both made of carbon. Or, as Earth’s temperature continues to rise alarmingly, we might think of the role carbon plays in climate change. Yet carbon’s story begins...