A century of records paints a worrying picture for Europe's bees
In most parts of Europe, bees have become less widespread during the last 100 years, according to a new study published in the journal Proceedings of the National Academy of Sciences.
A pulsar's apparent slowdown reveals a rare stellar trio
Pulsars are rapidly rotating neutron stars, the extremely dense cores left behind when massive stars explode. Astrophysicists have recently observed a pulsar rotating over 300 times per second that appeared to be slowing ...
The sun may have stripped away meters of interstellar comet 3I/ATLAS
The interstellar comet 3I/ATLAS brought material from another planetary system within reach of our telescopes, but reading its chemistry poses a problem. Energetic particles encountered during its journey through space may ...
River model reveals how coordinated water sharing could ease drought's unequal effects
Rivers provide water for everything from growing crops and running factories to the taps in our homes, but droughts can leave them struggling to meet all these demands. A new study, published in Water Resources Research, ...
Measuring regrowth: Erk gradients guide zebrafish fins back to their original size after injury
In a new Nature Physics study, researchers found that fin regrowth in zebrafish is driven by a brief burst of growth signal at the fin tip, sized to the amount lost, which sets up gradients of Erk activity that guide the ...
Algae fossils from Cambrian explosion hint at sophisticated reproductive system
The Cambrian explosion was a major diversification of animal life that unfolded early in the Cambrian period, which began around 538.8 million years ago. During this interval, marine animals became much more varied, building ...
Who really made China's Terracotta Army? Fingerprints reveal new clues
The Terracotta Army near Xi'an, China, is a breathtaking sight: thousands of life-size terracotta figures created in the third century B.C. to guard the tomb of Emperor Qin Shihuang. They were discovered in 1974, and people ...
Earth's core may have been leaking hydrogen for billions of years
When Earth formed billions of years ago, its metallic core was wrapped in a global ocean of molten rock, which eventually cooled and crystallized to form the mantle. Today, when deep-rooted mantle plumes rise toward the surface ...
Physicists prove a long-suspected quantum speed limit for thermalization
Whether we are waiting for a car windshield to defrost in winter or a warm drink to cool down, how long it takes for an object to settle into a stable, even temperature within its environment (thermal equilibrium) depends ...
Warming could help make the Indian Ocean a stronger climate buffer
The world's oceans help slow climate change by absorbing carbon dioxide (CO₂) from the atmosphere, but how much they take up can vary throughout the year. New research, published in Geophysical Research Letters, suggests ...
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New wireless system could power medical implants as they stretch
