Evolution

Scientists find plausible geological setting that may have sparked life on Earth

Researchers have discovered a plausible evolutionary setting in which nucleic acids—the fundamental genetic building blocks of life—could enable their own replication, possibly leading to life on Earth.

Astronomy

Webb researchers discover lensed supernova, confirm Hubble tension

Measuring the Hubble constant, the rate at which the universe is expanding, is an active area of research among astronomers around the world who analyze data from both ground- and space- based observatories. NASA's James ...

Seeing double: Designing drugs that target 'twin' cancer proteins

Some proteins in the human body are easy to block with a drug; they have an obvious spot in their structure where a drug can fit, like a key in a lock. But other proteins are more difficult to target, with no clear drug-binding ...

Scientists explore microbial diversity in sourdough starters

When millions of people went into lockdown during the pandemic, they went in search of new at-home hobbies to help cure their boredom. Among them was making sourdough bread. In addition to being sustainable for its use of ...

High-resolution images of RSV may expose stubborn virus's weak points

The complex shape of respiratory syncytial virus (RSV) is one hurdle limiting the development of treatments for an infection that leads to hospitalization or worse for hundreds of thousands of people in the United States ...

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Tech Xplore

New study maps Congo's bai ecosystems in unprecedented detail

"Tropical rainforest" might conjure images of close-packed trees, dense humidity, and the din of animal calls. But rainforests host landscapes beyond that archetypal one, including vast, treeless clearings that seemingly ...

Scientists develop a new model of electric double layer

A new model accounts for a wide range of ion-electrode interactions and predicts a device's ability to store electric charge. The model's theoretical predictions align with the experimental results. Data on the behavior of ...

Want to solve a complex problem? Applied math can help

You can probably think of a time when you've used math to solve an everyday problem, such as calculating a tip at a restaurant or determining the square footage of a room. But what role does math play in solving complex problems ...

AI model detects impervious surfaces in aerial images

In accordance with the German Sustainability Strategy, new impervious surfaces are to be limited to less than 30 hectares per day nationwide. In order to verify whether this target is met, it must be possible to monitor soil ...

Pregnancy after sterilization turns out to be surprisingly common

Tubal sterilization is thought to be a permanent form of birth control and is the most common method of contraception nationally. But a new study led by UC San Francisco reports that tubal surgery fails often enough that ...

Anthropologists' quest to save an Alamo cannon

The Alamo, a symbol of Texas' rich history, is home to many artifacts from its storied past. Among these is a unique battle cannon that recently became the focus of an intense preservation effort led by experts from the Department ...

Researchers explore cancer susceptibility in birds

In one of the largest studies of cancer susceptibility across bird species, researchers at Arizona State University describe an intriguing relationship between reproductive rates and cancer susceptibility.