Astronomers’ Simulations Bolster Case for Dark Matter’s Existence
Updated: 2024-04-30 13:26:32
Skip to content Menu Follow Us On Substack Google News Twitter X FaceBook Bluesky Our Bloggers Search Astronomers’ Simulations Bolster Case for Dark Matter’s Existence April 30, 2024 UC Irvine A team of astronomers , including researchers from the University of California , Irvine , has conducted computer simulations that support the existence of dark matter , a hypothetical form of matter that has yet to be directly detected but is thought by many physicists to be necessary to explain various aspects of the observable . universe Testing Models with Real , Observed Relationships The study , published in Monthly Notices of the Royal Astronomical Society , addresses a fundamental debate in astrophysics : whether dark matter must exist to explain how the universe works or if physicists can
Skip to content Menu Follow Us On Substack Google News Twitter X FaceBook Bluesky Our Bloggers Search New Diagnostic Tool ALPACA Could Boost Fusion Power Output April 30, 2024 U.S . Department of Energy The ALPACA measurement device being aligned using red and green lasers Scientists at the U.S . Department of Energy’s Princeton Plasma Physics Laboratory PPPL have completed the construction of a new plasma measurement instrument called ALPACA . This diagnostic tool could help increase the heat of fusion reactions in tokamaks , potentially improving the power output of future fusion power . plants Understanding Neutral Atom Density for Better Fusion Reactions ALPACA observes the light emitted by a halo of neutral atoms surrounding the plasma inside DIII-D , a tokamak operated by General
Skip to content Menu Follow Us On Substack Google News Twitter X FaceBook Bluesky Our Bloggers Search Healthy Lifestyle May Offset Life-Shortening Genes by Over 60 Study Finds April 30, 2024 British Medical Journal BMJ Unfavorable Lifestyle Linked to 78 Higher Risk of Premature Death A new study published in the journal BMJ Evidence Based Medicine suggests that adopting a healthy lifestyle may counteract the effects of genes associated with a shortened lifespan by more than 60 The research , based on an analysis of findings from several large long-term studies , also indicates that an unhealthy lifestyle is independently linked to a 78 increased risk of dying prematurely , regardless of genetic . predisposition The study used a polygenic risk score PRS to determine an individual’s overall
Skip to content Menu Follow Us On Substack Google News Twitter X FaceBook Bluesky Our Bloggers Search Permafrost Collapse Amplifies Climate Change Impact on Soil Carbon Emissions April 30, 2024 Barcelona Institute for Global Health ISGlobal Scientists Discover Heightened Sensitivity to Warming in Thermokarst Areas A new study published in Nature Geoscience has revealed that soil carbon dioxide CO2 emissions are more sensitive to climate warming in permafrost-collapsed areas , known as thermokarst , compared to non-collapsed regions . The findings provide crucial insights into the permafrost carbonâclimate feedback loop and its potential impact on future climate . change Led by Prof . YANG Yuanhe from the Institute of Botany of the Chinese Academy of Sciences , the collaborative research
, , . Skip to content Menu My journey as writer Contact About Air Quality Matters Discourse for all interested in all things air-quality related Menu My journey as writer Contact About With greater transit use lower vehicle dependence comes improved air , increased household savings potential , etc . Study April 29, 2024 In cities and in rural areas , in red states and blue states , most residents want cleaner and more connected communities . Public transit â including trains , buses , and dial-a-ride services â and accessible walking and bike routes give us healthy , clean , and affordable ways for everyone to get where they need to . go But for too long , policymakers have sold us the false choice that we must fund highways above all else . They continue to waste billions of our tax
A joint investment by the Australian federal government and the government of Queensland makes PsiQuantum one of the largest dedicated quantum computing firms in the world
Cosmological puzzles are tempting astronomers to rethink our simple picture of the universe – and ask whether dark matter is even stranger than we thought
, , Skip to content Menu Follow Us On Substack Google News Twitter X FaceBook Bluesky Our Bloggers Search Boost Your Cardio Fitness , Reduce Your Risk of Early Death and Chronic Diseases , Study Finds April 29, 2024 University of South Australia A study from the University of South Australia has revealed that increasing your cardiorespiratory fitness CRF by just one metabolic equivalent MET can reduce your risk of premature death from any cause by 11-17 and your risk of heart disease by 18 The study , which is the first to collate all the scientific evidence on the link between CRF and health outcomes , emphasizes the importance of regular aerobic exercise for a long and healthy . life The Power of Cardiorespiratory Fitness Cardiorespiratory fitness refers to your ability to perform
, Skip to content Menu Follow Us On Substack Google News Twitter X FaceBook Bluesky Our Bloggers Search Scientists Excite Thorium-229 Nucleus with Laser , Paving the Way for Unprecedented Precision Measurements April 29, 2024 Vienna University of Technology A laser beam hits thorium nuclei , embedded in a crystal . In a groundbreaking achievement , a research team led by Prof . Thorsten Schumm from TU Wien Vienna and a team from the National Metrology Institute Braunschweig PTB have successfully excited the thorium-229 nucleus using a laser . This milestone opens up new possibilities for precision measurements and could lead to the development of an ultra-precise nuclear clock and new insights into fundamental . physics The Elusive Thorium-229 Transition For decades , scientists worldwide
: , , Skip to content Menu Follow Us On Substack Google News Twitter X FaceBook Bluesky Our Bloggers Search Asteroid Ryugu’s Secrets Revealed : Space Weathering , Micrometeoroids , and the Early Solar System April 29, 2024 Hokkaido University Probing the effects of interplanetary space on asteroid Ryugu Researchers from Hokkaido University and 13 other Japanese institutions have uncovered new insights into the magnetic and physical bombardment environment of interplanetary space by analyzing samples from the asteroid Ryugu . The findings , published in the journal Nature Communications , shed light on the long-term effects of space weathering on celestial . bodies Hayabusa2’s Mission and Sample Collection The Japanese Space Agency’s Hayabusa2 spacecraft reached asteroid Ryugu in June 2018,
, Skip to content Menu Follow Us On Substack Google News Twitter X FaceBook Bluesky Our Bloggers Search When it Comes to Smarts , Dinosaurs Were More Like Crocodiles Than Monkeys April 29, 2024 University of Bristol A team of international researchers has challenged previous claims that dinosaurs , such as the iconic Tyrannosaurus rex , possessed intelligence comparable to that of monkeys . The new study , published in The Anatomical Record , suggests that these prehistoric giants were more akin to modern-day crocodiles and lizards in terms of cognitive . abilities Overestimating Dinosaur Brain Size and Neuron Counts The researchers found that previous studies had overestimated the brain size of dinosaurs , particularly the forebrain , and consequently , the number of neurons their brains
Skip to content Menu Follow Us On Substack Google News Twitter X FaceBook Bluesky Our Bloggers Search Seeing the invisible” : new tech enables deep tissue imaging during surgery April 29, 2024 Tokyo University of Science The novel hyperspectral imaging system accurately extracts the molecular vibrations of different resins and distinguishes between them with high reproducibility . Researchers from Tokyo University of Science , RIKEN , and the University of Las Palmas de Gran Canaria have developed the world’s first rigid endoscope system capable of hyperspectral imaging HSI from visible to over-thousand-nanometer OTN wavelengths . This breakthrough technology , published in Optics Express , promises to revolutionize medical and industrial applications by enabling the visualization of
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Editor’s Note: This post was co-authored by Hsin-Yuan Huang (Robert) and Richard Kueng. John Preskill, Richard P. Feynman Professor of Theoretical Physics at Caltech, has been named the 2024 John Stewart Bell Prize recipient. The prize honors John’s contributions in … Continue reading →