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Using X-ray lasers, researchers at Stockholm University have been able to determine the existence of a critical point in supercooled water at around -63 °C and 1,000 atmospheres. Ordinary water at higher temperatures and lower pressures is strongly affected by the presence of this critical point, causing the origin of its strange properties. The findings are published in the journal Science.
The man called 911 on himself, stating he was going to “kill everybody” in a gym; when officers arrived, he rammed vehicles while pointing a gun at Sparks Police officers
The Court ruled that it was not clearly established that Vermont State Police Sgt. Jacob Zorn violated Shela Linton’s Fourth Amendment rights, entitling him to qualified immunity in the 2015 case
A new independent measurement by the CMS experiment at the LHC is consistent with the existence of the most massive composite particle ever observed, the momentary union of a top quark and its antiquark
Having a baby in space may require a bit more direction, with new Adelaide University research revealing the navigational abilities of sperm are negatively impacted by a lack of gravity. Researchers at the University’s Robinson Research Institute, School of Biomedicine and Freemasons Center for Male Health and Wellbeing investigated how extraterrestrial conditions might influence sperm navigation, fertilization and early embryo development.
For the first time, a team of physicists in Austria has carried out an experiment that appears to verify the principle of indefinite causal order: an idea that suggests that timelines of events can exist in multiple orders at the same time. Led by Carla Richter at the Vienna Center for Quantum Science and Technology, the researchers hope their result could finally allow physicists to verify a key prediction of quantum theory. The results have been published in PRX Quantum.
Gordon Graham recounts how a chance encounter launched his career and fueled decades of work in risk management and organizational improvement on CHP’s podcast
Debris from moonbound spacecraft has left craters on the lunar surface since the U.S. Apollo missions. But the moon is not used to being surrounded by debris. With an expected resurgence in lunar missions in the coming years, such as the U.S. Artemis II test flight, Purdue University engineer Carolin Frueh is researching how to track the likely increase in spacecraft debris and minimize its impact in the area between the moon and Earth, called the cislunar region. In the next decade, at least 30 missions could be launching to the cislunar region.
A team of cosmologists in China has introduced a mathematical framework that investigates two of the deepest mysteries in cosmology at the same time. Publishing their research in The Astrophysical Journal, Yun Chen and colleagues at the Chinese Academy of Sciences suggest their work could pave the way for vital corrections to the current ΛCDM model—alongside a long-awaited resolution to the Hubble tension.
Our Milky Way’s halo of hot gas is warmer to the “south” than the “north” because of an internal combustion engine-like effect that is compressing the gas like a piston, a new study has found. Computer simulations reveal that the Large Magellanic Cloud—a satellite galaxy below, or on the south side, of our own—attracts the Milky Way, causing gas in the southern half of the halo to compress and heat up.
Quantum computers, systems that process information leveraging quantum mechanical effects, could outperform classical computers on some advanced tasks. These systems rely on qubits, the fundamental units of quantum information, that become linked via an effect known as quantum entanglement and share a unified quantum state.
Walking on the moon by 2030, building a lunar base, and then perhaps on to Mars: after 30 years of honing its expertise, China is challenging the United States’ supremacy in spaceflight.
An international team led by a researcher at the Chiba Institute of Technology has discovered an extremely rare phenomenon: a galaxy about 10 billion light-years away whose brightness dropped to one-twentieth of its original level in just 20 years. By combining multiwavelength observations with archival data spanning several decades, the researchers concluded that the fading was caused by a rapid decrease in the gas flowing into the supermassive black hole at the galaxy’s center. The discovery shows that the activity of supermassive black holes can change dramatically on timescales short enough to be observed within a human lifetime.
NASA’s James Webb Space Telescope and Hubble Space Telescope have teamed up to capture new views of Saturn, revealing the planet in strikingly different ways. Observing in complementary wavelengths of light, the two space observatories provide scientists with a richer, more layered understanding of the gas giant’s atmosphere.
Their mass is extremely low, but how light are neutrinos really? A collaboration comprising German and international research groups has optimized its experiments to determine the mass of these “ghost particles.” In doing so, they succeeded in further adjusting downward the upper limit on the neutrino mass scale that had previously been determined in similar experiments. The study is published in the journal Physical Review Letters.
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