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Phys.org / Climate change may reduce the number of satellites that can safely orbit in space
MIT aerospace engineers have found that greenhouse gas emissions are changing the environment of near-Earth space in ways that, over time, will reduce the number of satellites that can sustainably operate there.
Phys.org / Fossil evidence found of humans domesticating avocados 7,500 years ago
A team of anthropologists and evolutionary biologists affiliated with several academic institutions in the U.S., working with a colleague from the Smithsonian Institution, has found evidence of humans domesticating avocados ...
Phys.org / Dudeney's 120-year-old dissection puzzle solution proves optimal
In 1907, the English author and mathematician Henry Ernest Dudeney posed a puzzle: Can any equilateral triangle be cut into as few pieces as possible that will fit together to form a perfect square? Four weeks later, he presented ...
Medical Xpress / Gut bacterium restores bile acid balance to heal intestinal injuries, offering potential ulcerative colitis treatments
The human gut is home to trillions of bacteria that play vital roles in digestion, immunity, and overall health. When this microbial balance is disturbed, it can contribute to the development of chronic diseases like ulcerative ...
Phys.org / Quantum control of collisions possible beyond ultralow temperatures, study shows
At ultracold temperatures, interatomic collisions are relatively simple, and their outcome can be controlled using a magnetic field. However, research by scientists led by Prof. Michal Tomza from the Faculty of Physics of ...
Phys.org / 2D semiconductor sensor: Gold nanoparticles boost optical signal efficiency
Next-generation imaging technology is rapidly expanding beyond smartphones into intelligent devices, robotics, extended reality (XR) devices, health care, CCTV, and various other industries. At the core of these technological ...
Phys.org / Volcanic activity billions of years ago set the stage for Earth's oxygen-rich atmosphere, research suggests
It is widely believed that Earth's atmosphere has been rich in oxygen for about 2.5 billion years due to a relatively rapid increase in microorganisms capable of performing photosynthesis. Researchers, including those from ...
Phys.org / Carbon nanotubes and machine learning: A new way to spot subtle immune cell differences
Early diagnosis is crucial in disease prevention and treatment. Many diseases can be identified not just through physical signs and symptoms but also through changes at the cellular and molecular levels.
Phys.org / Astronomers find potential new class of icy interstellar objects
A trio of astronomers with the University of Tokyo and Niigata University has discovered a possible new class of interstellar object. In their study, published in The Astrophysical Journal, Takashi Onaka, Itsuki Sakon and ...
Phys.org / Ultra-thin bismuth holds unexpected promise for green electronics
Electronic devices rely on materials whose electrical properties change with temperature, making them less stable in extreme conditions. A discovery by McGill University researchers that challenges conventional wisdom in ...
Phys.org / Earth's orbital rhythms link timing of giant eruptions and climate change
An international team of scientists has synchronized key climate records from the Atlantic and Pacific Oceans to unravel the sequence of events during the last million years before the extinction of the dinosaurs at the Cretaceous/Paleogene ...
Phys.org / Rational design of precatalysts boosts hydrogen production efficiency
In order to meet our goals for carbon neutralization by the 2050s, we need environmentally friendly fuels. Catalysts (and their precursor, precatalysts) are key components in the electrochemical water-splitting reaction that ...