Phys.org news

Phys.org / Climate resilience of brown bears over 175,000 years revealed in 3D analyses of their jaws

European brown bears are masters of survival: These animals have weathered Pleistocene climate fluctuations and survived the cycles of ice ages and interglacial periods to the present day. Zoologists have now investigated ...

12 hours ago
Phys.org / Orbit overload could devastate astronomy if 1.7 million proposed satellites brighten night sky

A new European Southern Observatory (ESO) study has found that current proposals to launch more than 1.7 million satellites into orbit, including extremely bright ones, would have "devastating consequences for astronomy." ...

14 hours ago
Phys.org / What made trees possible? New research points to drought

A study is reframing a fundamental question in plant evolution: What made trees possible? Researchers from Cal Poly Humboldt, Yale University, the University of Hohenheim in Germany and the Czech Academy of Sciences set out ...

15 hours ago
Phys.org / Tooth fossil analysis suggests 'brawn before bite' in early Asian mammals

An analysis of fossil teeth from mammals that lived in China following the most recent major mass extinction suggests size came before both shape and function as diets diversified.

13 hours ago
Phys.org / Were Clovis foragers in Late Pleistocene North America big-game hunters, or just big-game scavengers?

There are currently 15 well-documented Late Pleistocene localities in North America in which Clovis points are found associated with proboscidean remains (of mammoth, mastodon and gomphothere). Archaeologists routinely assume ...

16 hours ago
Phys.org / Can AI plan for heat emergencies better than simple rules? It depends

The thermometer reads 95°F (35°C) in Brooklyn, and vulnerable individuals need information to take appropriate action. New York City officials must gather facts quickly to provide updates on cooling centers, power outages ...

11 hours ago
Phys.org / Himalayan pangolin emerges as distinct species, confirmed with DNA from 19th-century specimen

The pangolin is a midsize mammal found only in Africa and Asia. The pangolins' scales make them unique, but these scales have become their undoing. Pangolins are poached for their scales, making them the most highly trafficked ...

20 hours ago
Phys.org / Webb reveals merger scars in galaxies that stopped forming stars 9 billion years ago

Research has shed new light on why some distant galaxies suddenly stop forming stars. An international team led by astronomers at the University of Nottingham has used the James Webb Space Telescope to study a large sample ...

16 hours ago
Phys.org / From fields to space farming, new tool detects crop drought stress before it's visible

When it comes to drought stress, timing can be the difference between saving a crop and losing it, whether in a greenhouse or in the high-stakes environment of future space missions. In a recent study published in Plant Phenomics, ...

14 hours ago
Phys.org / Black-box optimization weather intervention method supports future disaster mitigation

In recent years, the frequency of weather-related natural disasters—cyclones, torrential rains, floods—has increased as a consequence of global warming. These disasters cause billions of dollars in damage and losses every ...

14 hours ago
Phys.org / NASA rolls out three robotic moon missions as 2029 lunar base plans take shape

NASA on Tuesday announced new uncrewed missions to aid in the future creation of a lunar surface base, a project beginning to take shape despite recent setbacks.

23 hours ago
Phys.org / Italy displays paintings from an ancient Etruscan tomb, its latest cultural acquisition

Italy on Tuesday put on display one of the best known examples of Etruscan painting, panels from a tomb that it acquired for 15 million euros ($17 million) in the Culture Ministry's buying spree of big-ticket pieces of the ...

23 hours ago