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Researchers at Tokyo Metropolitan University have uncovered how a catalyst used in a promising industrial reaction helps generate ammonia, a major component of fertilizer. In this process, copper oxide acts as an important catalyst in the electrochemical nitrate reduction reaction, a more environmentally friendly approach compared to the traditional Haber-Bosch method. The team found that…

A recent investigation has revealed that African lions use two separate kinds of roars, not just one. This finding is expected to play an important role in improving how conservation groups track and study these big cats. Researchers at the University of Exeter uncovered a previously unrecognized “intermediary roar” that appears alongside the well-known full-throated…

What sounds like the storyline of a medieval palace drama often plays out in real-life honey bee colonies. A once-strong ruler weakens, her supporters turn against her, and a dramatic change in leadership follows. For bees, these events are not rare. These internal takeovers carry both risks and benefits for colonies and for the agricultural…

Researchers at Washington University School of Medicine in St. Louis, working with scientists at Northwestern University, have created a noninvasive strategy to treat one of the most aggressive and deadly forms of brain cancer. Their method relies on carefully designed nanostructures made from extremely small materials that can carry potent cancer-fighting compounds into the brain…

Mark Poynting,Climate and science reporter and Georgina Rannard,Climate and science reporter, Belém, Brazil EPA The summit has had a large number of delegates from indigenous groups, but some say they still have not been listened to Fights over fossil fuels and money appear to have deadlocked the COP30 climate talks, as negotiations ran through the…

The force of a volcanic eruption is closely tied to how many gas bubbles appear within rising magma, as well as the timing of their formation. For many years, scientists believed that most bubbles developed only when magma ascended and the surrounding pressure fell. In deeper layers, high pressure keeps gases dissolved in the molten…

Earthquake faults located deep within the planet can reconnect after a seismic disturbance, according to new research from the University of California, Davis. The study, published Nov. 19 in Science Advances and supported by National Science Foundation grants, introduces a new factor that could reshape how scientists interpret fault behavior linked to major earthquakes. “We…

Around 115 million years ago, the waters north of Australia supported a massive shark that can be viewed as an early relative of the creatures made famous by “Jaws.” Newly examined fossils show that modern sharks began developing extremely large body sizes far earlier in their evolutionary timeline than scientists once thought. These remains indicate…

Scientists have known for many years that hormones can shape how the brain works, affecting emotions, mental energy, and everyday choices. What remains unclear is exactly how these chemical signals bring about such changes. A recent investigation offers new insight by examining the role of estrogen, a hormone central to the female reproductive cycle. Through…