Headlines

Dead or alive, plankton support marine ecosystems

As tiny as they are, marine plankton play pivotal roles in biogeochemical cycles and sustaining aquatic ecosystems, producing around half of the oxygen on Earth and also acting as carbon sinks. When they die, their decomposing cells produce dissolved organic carbon that can be

Navigating the social dynamics of sustainability

In the transformation toward sustainability, the interests of societal, economic and political actors often clash, making conflict inevitable. Understanding these dynamics and learning how to engage with them constructively is therefore crucial.

Bringing hidden optical imperfections to light

Tiny manufacturing imperfections in optical components normally go unnoticed. Yet they can alter light in surprisingly significant ways. An international research team led by TU Darmstadt has shown that such imperfections can affect not only polarization—the direction in which

Detecting 'pressure anisotropy' using zirconia nanoparticles

Researchers at University of Tsukuba have discovered that the crystal structure of zirconia nanoparticles remains stable under uniform pressure applied from all directions but changes under anisotropic pressure. This unique property is expected to lead to new technologies for

There's nothing irrational about resisting AI

If you read about AI, you'll find a widespread belief: When people don't want to use AI, it's because they're afraid or just don't understand it. They're afraid of losing their jobs or of change generally. Or they don't understand the technology, so they can't see the benefits.

Peer-led computing camps engage children, study finds

High school student Khushi Kharuna creates and leads coding and artificial intelligence (AI) summer camps for K–12 students in her community outside Philadelphia. Priya Kumar, PNC Technologies Career Development Professor in Penn State's College of Information Sciences and

BepiColombo measures Mercury's particle bombardment up close

The joint BepiColombo mission of the European Space Agency (ESA) and the Japan Aerospace Exploration Agency (JAXA) is settling into orbit around Mercury after an eight-year journey. In early September, BepiColombo's two orbiters, the Mercury Planetary Orbiter and the Mercury

The Four-Color Theorem Gets a Rare New Proof

By revisiting the famous problem — which was controversially solved in the 1970s with the help of computers — mathematicians have gained important new insights into the nature of graphs. The post The Four-Color Theorem Gets a Rare New Proof first appeared on Quanta Magazine

When bad luck isn't random: Understanding 'zemblanity'

In 2025, associate professor Christian Busch's Palisades home burned down in one of the most destructive wildfires in Los Angeles history. Busch says the disaster wasn't blind bad luck; it was a clear case of "zemblanity," which he defines as a patterned and preventable form of

Hungry scent detection dogs more likely to 'cry wolf'

Dogs trained in scent detection may be better at sniffing out the right smell after breakfast, with new research finding hungry dogs working for treats are more likely to falsely identify the wrong scent. The study, led by researchers from the University of Waikato and Adelaide

Mercury is shrinking more than we thought

Mercury's surface is riddled with wrinkles, evidence of a once-larger planet that has shrunk over time. A new study finds that Mercury may have contracted 10% to 30% more than previously thought—a loss of nearly 12 miles (19 kilometers) of total diameter since the planet