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Phys.org / The biggest black hole merger ever observed could be less massive than it appears

Gravitational waves are ripples in spacetime created when pairs of black holes spiral into each other and eventually merge. But if this ripple has been warped by another massive object on its way to Earth, a new analysis ...

4 hours ago
Phys.org / Salt may have helped turn Earth into a frozen world 700 million years ago

Earth may have been pushed deeper into a global deep freeze by something surprisingly ordinary: salt. Around 700 million years ago, Earth entered periods of extreme glaciation known as Snowball Earth, when ice is thought ...

5 hours ago
Medical Xpress / Diabetes drug metformin could be repurposed to help slow aging mechanisms

Metformin, a widely prescribed, safe and inexpensive drug for type 2 diabetes, is a first-line treatment that lowers blood sugar and improves the body's response to insulin. The drug appears to trick cells into sensing an ...

4 hours ago
Medical Xpress / Cerebral palsy might be a collection of symptoms, not its own disease

Historically, cerebral palsy (CP) was linked largely to events at birth, including prematurity or temporary loss of oxygen to the brain, but research over the past decade has suggested that genetic factors contribute to CP ...

1 hour ago
Phys.org / Probiotic and postbiotic treatments revive heat-stressed corals in field experiment

Climate change continues to threaten the world's coral reefs, which support at least a quarter of all marine life. Though probiotics have been shown to rehabilitate corals in aquarium experiments, demonstrating the efficacy ...

1 hour ago
Phys.org / Completing the connectome: How pursuing a map of the fly brain rewired neuroscience

When researchers at HHMI's Janelia Research Campus set out to create a map of all the neurons in the fruit fly brain in 2008, many in the scientific community thought they were out of their minds.

1 hour ago
Phys.org / Ancient DNA suggests western farming reached Gansu without mass migration

A multidisciplinary study has answered key questions about how agricultural practices diffused into ancient Gansu from Eurasia, as well as described population movements and burial practices in the Gansu region thousands ...

1 hour ago
Medical Xpress / The blueprint for taste: Scientists map the neural circuitry behind feeding decisions in fruit flies

Everything you eat passes one checkpoint before it enters your body: taste. In a fraction of a second, it decides what gets swallowed and what gets rejected, a judgment call critical to survival. Now, for the first time, ...

1 hour ago
Tech Xplore / Brain activity patterns could help sharpen LLM deductive reasoning

Large language models (LLMs), the artificial intelligence systems underpinning the functioning of ChatGPT, Gemini and other similar conversational agents, are now widely used worldwide. In addition to processing, interpreting ...

5 hours ago
Phys.org / Tiny crustacean helps scientists understand genes regulating circatidal rhythms

Scientists at UMass Chan Medical School and the Marine Biological Laboratory at Woods Hole have shown that the four core clock genes responsible for maintaining circadian rhythms in animals—Per, Cry2, Bmal1 and Clk—also regulate ...

2 hours ago
Medical Xpress / How meal timing programs the liver's daily rhythms

Deep inside the brain, a master clock synchronizes thousands of molecular clocks scattered throughout the body, and together, they anticipate signals such as the rising sun, the coming night and the daily rhythms of life. ...

2 hours ago
Phys.org / Gharial pop patterns and gecko calls uncover reptiles' overlooked social communication

Along the sandy banks of northern India's Chambal River, crocodile-like gharials glide silently through the water—but if a gharial spots a stranger, the quiet may be punctuated by a series of explosive pops.

1 hour ago