Latest Articles
Recent science explainers, reference articles and guides from Science University.
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How the Immune System Recognizes Pathogens
The immune system combines barriers, innate pattern recognition, antigen presentation, antibodies and T cells to detect pathogens while limiting damage to healthy tissue.
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What Causes Earthquakes? Faults, Seismic Waves and Magnitude
Earthquakes occur when accumulated stress causes rocks to slip along a fault. Learn how plate motion, seismic waves, magnitude, intensity and secondary hazards fit together.
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How Photosynthesis Converts Light Into Chemical Energy
Photosynthesis captures light energy, uses it to make ATP and NADPH, and fixes carbon dioxide into organic molecules. Here is how the process works inside chloroplasts.
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How DNA Replication Works: Enzymes, Steps and Accuracy
DNA replication copies a cell’s genetic information before division. Learn how replication forks, DNA polymerases, Okazaki fragments, proofreading and repair work together.