Eighty-five percent of the mass in our Universe is the mysterious substance named dark matter. Besides giving it a name, however, we know little else about it. How can we claim we know dark matter exists if we can't even see it? Through gravity. Just... click to read more

There is nothing subtle about the immune system. T cells, potent immune cells found in the blood, can kill just about anything. In response to a viral infection, T cells move in, kill any of your cells that have a virus inside them, coordinate a... click to read more

Infectious diseases rank among the greatest threats to human health. While the world stumbles through the current COVID-19 pandemic, a vast array of viral, fungal, parasitic, and bacterial pathogens continue to threaten people's lives. Before the rise of the pandemic, tuberculosis was the world's deadliest... click to read more

The Scream, realized by Edvard Munch between 1893 and 1916, is one of the most famous series of artworks of the modern era, symbolizing anxiety and anguish. There are a number of versions of The Scream: two paintings, two pastels, several lithographic prints and a... click to read more

Glaciers, popularly thought of as rivers of ice, are "sentinels" of climate change — stable and persisting over centuries, they slowly respond to environmental changes. So, measuring fluctuations in glaciers provides a great way to estimate the long-term effect of changing climate. Diminishing or even... click to read more