In Chile, during the dictatorship, photographs taken in domestic and intimate settings documented ways of life that the regime sought to render invisible. Many of these images, preserved in family albums or personal collections, became over time testimonies to experiences that remained outside official narratives, even after the return to democracy.
Just a few meters from the chaotic flow of students coming and going at the Universidad de Santiago metro station, there is a corner of the campus that seems to move at a different pace.
Vitamin D is an essential nutrient for the body’s proper functioning, obtained through sun exposure, diet, and supplements. Its main function is to facilitate calcium absorption, which is key to maintaining strong bones and preventing diseases such as osteoporosis. It also plays an important role in muscle function and in the transmission of signals between the brain and the rest of the body.
“A drop of water wears away a stone” is a saying we’ve probably heard more than once. Attributed to the Chinese philosopher Lao Tzu more than 5,000 years ago, it is often interpreted as a metaphor for perseverance and consistency; however, behind this popular phrase lies a scientific question that, to this day, remains without a definitive answer.
Although the phenomenon seems obvious, physics has yet to explain how a drop of water—incapable of breaking a rock with a single impact—can eventually erode it by falling repeatedly on the same spot.
Whether predicting weather patterns, mapping neural behavior, or tracking disease transmission, mathematical models allow researchers to decode how the physical world operates and anticipate future scenarios.
For a long time, these models were built on the assumption that certain phenomena unfold gradually—that is, in a more or less predictable way—and that each event depends primarily on what is happening in its immediate surroundings. However, reality often behaves in more complex ways.
One hundred and thirty thousand years ago, Earth entered a warming transition period, from an ice age to the beginning of the Eemian Interglacial Period. While Neanderthals were recolonizing northern Europe and Homo sapiens were exploring routes beyond the African continent, the planet was home to an impressive megafauna, including mammoths, mastodons, and saber-toothed tigers, during a period when global temperatures were higher than they are today and sea levels were several meters higher than they are now.
Early in the morning, silence still fills the hallways of the Faculty of Chemistry and Biology at the University of Santiago de Chile (Usach). At the far end stands Dr. Francisco Cubillos’s lab—a vibrant, bright space filled with flasks, test tubes, and cutting-edge biotechnology equipment where groundbreaking yeast genetics research takes place.
Since Chile's 1990 return to democracy, the relationship between big business and politics has been a defining factor in shaping state policy. Chilean business groups expanded their financial power and political influence through campaign financing, business associations, and the revolving door between public and private sectors.
Every year, millions of metric tons of plastic end up as waste, making plastic pollution one of the world’s major environmental challenges. According to global plastic waste statistics from the Organization for Economic Cooperation and Development (OECD), more than 408 million metric tons of plastic waste are currently generated each year, but only about 9% is effectively recycled; the rest ends up incinerated, in landfills, or improperly disposed of in natural ecosystems.
As energy transitions and technology advance, lithium-ion batteries have become the gold standard for modern energy storage. From everyday electronics to electric vehicles (EVs), their efficiency, high capacity, and long-term durability drive the future of clean power.