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Phys.org / Light echoes reveal possible dark matter buildup around supermassive black holes

We may not know what dark matter is, but we keep getting whiffs of it. "We are reaching a point where the observational evidence for dark matter is simply undeniable," said Mayank Sharma, a Virginia Tech graduate student ...

8 minutes ago
Phys.org / Even weak ocean models can provide valuable information for environmental forecasts, study shows

Oxygen depletion in the western Baltic Sea is not uncommon. Oxygen-poor conditions regularly occur in deeper waters, placing stress on marine ecosystems and, in extreme cases, causing fish kills. As ocean temperatures continue ...

58 minutes ago
Phys.org / Newly synthesized fullerene material remains metallic even under low temperatures

An international team whose research was coordinated by Osaka Metropolitan University (OMU) has reported the survival of metallic behavior in the strongly correlated molecular material ytterbium cesium fulleride (Yb₂CsC₆₀). ...

38 minutes ago
Phys.org / Parents' heat warning songs may prime zebra finch chicks for heat before they hatch

Sealed within an eggshell, how can chicks prepare for the world into which they are about to hatch, with no obvious direct communication channel across the shell? Adult zebra finches produce distinctive high-pitched warning ...

18 minutes ago
Medical Xpress / Hardening the body: The science behind martial arts conditioning

The White House is gearing up to host a UFC event as part of celebrations marking 250 years of American independence. The fighters on the card are relying on body-conditioning techniques that have been around for centuries ...

58 minutes ago
Phys.org / Heat claimed more than 200,000 lives in Europe since 2022: WHO

More than 200,000 lives have been lost to the "silent killer" of heat in Europe since 2022, the World Health Organization said Thursday, after a heat wave saw some countries record their highest-ever May temperatures.

18 minutes ago
Medical Xpress / How body clock may shape inflammation, cancer risk and timing of future treatments

Daily life is shaped by the solar day, influencing when we wake up, eat, work and sleep. Inside the body, a similar internal timing system—present in nearly every cell—known as the circadian clock synchronizes many biological ...

18 minutes ago
Phys.org / When seeds mislead, weeds succeed: Researchers uncover surprising ways weeds spread

Biologists have long thought that seed traits, such as the presence of wings, are the key to predicting in what way, and how far, weeds can disperse. Now, a trio of researchers has revealed that unexpected modes of seed dispersal ...

38 minutes ago
Tech Xplore / High prevalence of poor sleep quality among Japanese esports players

A research team at the University of Tsukuba reported that 43.3% of Japanese esports players were classified as having poor subjective sleep quality, according to a cross-sectional survey. In particular, poor sleep quality ...

18 minutes ago
Phys.org / Capable CEOs communicate climate risks more consistently

Climate disclosures help investors and the public understand how companies view risks such as extreme weather, carbon regulation and the transition to cleaner energy. "Because these risks are uncertain and forward-looking, ...

58 minutes ago
Phys.org / 'Selection shadow' may explain why longer lives bring more age-related disease

A review article now published in Nature Reviews Genetics brings together evolutionary theory, comparative genomics and large-scale human genetics to explain why we age and why aging rates differ among individuals and species. ...

1 hour ago
Phys.org / Genomes from Oceania offer new clues to human evolution

A new Yale-led study provides one of the most detailed and comprehensive analyses to date of genetic variation in human populations in Oceania, filling a major gap in representation in genomics research. Despite harboring ...

1 hour ago