The answer for how life began to evolve on Earth has been philosophized for thousands of years. However, a robust scientific explanation has remained illusory. Here, author Max Cabaj describes a recent study in which researchers have identified from meteorites a diverse set of pyrimidines and purines, two critical structural components of nucleic acids.
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New Neurons Beyond Birth?
Whether or not neurogenesis occurs in adult humans has been debated for decades. In this article, Xinyue Chen details the challenges researchers face to obtain evidence either supporting or refuting the notion of adult neurogenesis, as well as the scientific and medical potential that would come with proof of its existence.
Read MoreThe Link Between Chronic Stress and Hair Loss Explained
In this video, Claire Everett and Xinyue Chen illustrate at the molecular level how chronic stress can induce hair loss.
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The history of science is full of examples of discovery, both intentional and accidental. But how do scientists study subject matter incapable of being explained by simple models? And additionally, if science can produce favorable results (say, in the clinic), to what extent does it matter whether or not the results can be fully explained? Here, Siddhant Iyer outlines the ways in which scientists may study as-of-yet unexplained phenomena and argues for a framework involving the use of complex models while also acknowledging limitations.