Drug-resistant bacteria are becoming harder to treat, pushing scientists to look for new antibiotic targets. Researchers have now discovered that several unrelated viruses disable a key bacterial protein called MurJ, which is essential for building the bacterial cell wall. High-resolution imaging shows these viral proteins lock MurJ into a single...
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How the body really ages: 7 million cells mapped across 21 organs
Scientists have built a massive cellular atlas showing how aging reshapes the body across 21 organs. Studying nearly 7 million cells, they found that aging starts earlier than expected and unfolds in a coordinated way throughout the body. About a quarter of cell types change in number over time, and...
A major climate hope in Antarctica just melted away
A popular climate theory suggested that melting Antarctic glaciers would release iron into the ocean, sparking algae blooms that pull carbon dioxide from the air. New field data from West Antarctica reveal that meltwater provides far less iron than scientists once believed. Instead, most of the iron comes from deep...
This plastic is made from milk and it vanishes in 13 weeks
Scientists racing to tackle plastic pollution have created a surprising new contender: a biodegradable packaging film made partly from milk protein. Researchers at Flinders University blended calcium caseinate with starch and natural nanoclay to form a thin, durable material designed to mimic everyday plastic. In soil tests, the film fully...
Scientists discover microbe that breaks a fundamental rule of the genetic code
Scientists at UC Berkeley have discovered a microbe that bends one of biology’s most sacred rules. Instead of treating a specific three-letter DNA code as a clear “stop” signal, this methane-producing archaeon sometimes reads it as a green light—adding an unusual amino acid and continuing to build the protein. The...
Many Nations Underestimate Greenhouse Emissions From Wastewater Systems, But the Lapse is Fixable
Nations worldwide underestimate greenhouse gas emissions from wastewater systems, research from Princeton University shows. Outdated inventory methods and failure to include items like latrines and untreated sewage in national reports are main reasons.
Predicting Extreme Rainfall Through Novel Spatial Modeling
Japan is an archipelago with diverse climate zones and complex topography that is prone to heavy rain and flooding.
Warming Raises the Risk That Multiple Wildfires Strike at Once
The extreme heat, high winds, and severe dry conditions that produce towering, fast-moving flames that advance by the acre are not just becoming more common; new research shows that these factors are increasingly arising in multiple regions at the same time, creating the conditions for simultaneous wildfires around the world.
MIT study finds Earth’s first animals were likely ancient sea sponges
Scientists at MIT have found compelling chemical evidence that Earth’s earliest animals were likely ancient sea sponges. Hidden inside rocks over 541 million years old are rare molecular “fingerprints” that match compounds made by modern demosponges. After testing rocks, living sponges, and lab-made molecules, researchers confirmed the signals came from...
Stunning 3D maps reveal DNA is structured before life “switches on”
For decades, scientists believed a fertilized egg’s DNA began as a shapeless mass, only organizing itself once the embryo switched on its genes. But new research reveals that the genome is already carefully arranged in three dimensions long before that critical activation step, known as Zygotic Genome Activation. Using a...