lundi 17 juillet 2023

SCIENCES ENERGIES ENVIRONNEMENTT/TRADUCTIONS DE LA SEMAINE

Newsletter Science X <not-for-reply@physorg.com>Se désinscrire
À :olivier hartmanshenn
lun. 17 juil. à 05:32

Dear olivier hartmanshenn,

Here is your customized Science X Newsletter for week 28:

New research puts age of universe at 26.7 billion years, nearly twice as old as previously believed

Our universe could be twice as old as current estimates, according to a new study that challenges the dominant cosmological model and sheds new light on the so-called "impossible early galaxy problem."

'Like a mirror': Astronomers identify most reflective exoplanet

A scorching hot world where metal clouds rain drops of titanium is the most reflective planet ever observed outside of our Solar System, astronomers said on Monday.

Welcome to the Anthropocene, Earth's new chapter

Since 2009, a cloistered band of hard-rock geologists and other scientists have toiled on a mission of great consequence.

James Webb Space Telescope finds possible evidence of dark stars

A trio of astrophysicists, two from Colgate University and the third from the University of Texas, has found evidence of dark stars courtesy of data from the James Webb Space Telescope. In their study, reported in Proceedings of the National Academy of Sciences, Cosmin Ilie, Jillian Paulin and Katherine Freese, analyzed three galaxies spotted by the JWST and how they might relate to dark stars.

Placement of ancient hidden lamps, skulls in cave in Israel suggests Roman-era practice of necromancy

A pair of archaeologists, one with the Israel Antiquities Authority, the other from Bar-Ilan University, has found evidence of Roman-era necromancy practices in a cave in Israel. In their study, reported in the journal Harvard Theological Review, Eitan Klein and Boaz Zissu analyzed artifacts excavated from the Te'omim Cave over the past 14 years.

Discovery of chemical means to reverse aging and restore cellular function

In a groundbreaking study, researchers have unlocked a new frontier in the fight against aging and age-related diseases. The study, conducted by a team of scientists at Harvard Medical School, has published the first chemical approach to reprogram cells to a younger state. Previously, this was only achievable using a powerful gene therapy.

Genes for learning and memory are 650 million years old, study shows

A team of scientists led by researchers from the University of Leicester have discovered that the genes required for learning, memory, aggression and other complex behaviors originated around 650 million years ago.

Meet the 486-legged creature found in an LA area park

A previously unknown species has been discovered lurking in the parks of Los Angeles and Orange counties.

New technique may help achieve mass production fusion energy

Fusion, which replicates the same reaction that powers the sun, has long been viewed as an ideal energy source due to its potential to be safe, clean, cheap, and reliable.

Pets do not significantly benefit the emotional health of owners with severe mental illness, study shows

A new study published in the CABI journal Human-Animal Interactions suggests that companion animals—including dogs, cats, fish and birds—do not significantly benefit the emotional health of owners with severe mental illness.

A new, thin-lensed telescope design could far surpass James Webb—goodbye mirrors, hello diffractive lenses

Astronomers have discovered more than 5,000 planets outside of the solar system to date. The grand question is whether any of these planets are home to life. To find the answer, astronomers will likely need more powerful telescopes than exist today.

Research group deciphers enigmatic ancient 'unknown Kushan script'

The Kushan Empire in Central Asia was one of the most influential states of the ancient world. A research team at the University of Cologne's Department of Linguistics has now deciphered a writing system that sheds new light on its history.

The code breakers: Harnessing the power of AI to understand what animals say

An international group of experts argue that tackling the long-standing challenge of decoding the communication systems of whales, crows, bats, and other animals is coming within reach, following breath-taking advances in artificial intelligence (AI) research.

Researchers find that targeting immune cells may help treat atrial fibrillation

Current treatments for atrial fibrillation (AFib), a common heart condition characterized by fast and irregular beats that can lead to stroke and heart failure, have multiple side effects and are ineffective for preventing AFib recurrence.

Unraveling the tangled evolution of figs

Containing more than 850 species, fig trees are one of the most diverse groups of plants in the world.

Astrophysicists discover spectacular quasar-driven superbubbles in three luminous red quasars

A team of astrophysicists with members from China, the U.S. and Germany has discovered ionized gas nebulae surrounding three luminous red quasars featuring pairs of "superbubbles." In their study, reported in the journal Science Advances, the team spotted and analyzed the superbubbles using data from the Gemini North telescope in Hawaii.

Parkinson's disease: Intense exercise may help to keep the disease at bay

Neuroscientists from the Faculty of Medicine of the Catholic University, Rome Campus, and the A. Gemelli IRCCS Polyclinic Foundation have found that intensive exercise could slow the course of Parkinson's disease. The finding could pave the way for new non-drug approaches.

Revealing the invisible: Detecting variations in extragalactic magnetic fields

Magnetic fields are common throughout the universe but incredibly challenging to study. They don't directly emit or reflect light, and light from all along the electromagnetic spectrum remains the primary purveyor of astrophysical data. Instead, researchers have had to find the equivalent of cosmic iron filings—matter in galaxies that is sensitive to magnetic fields and also emits light marked by the fields' structure and intensity.

Astronomers identify the coldest star yet that emits radio waves

Astronomers at the University of Sydney have shown that a small, faint star is the coldest on record to produce emission at radio wavelength.

Physicists demonstrate sign reversal of the Josephson diode effect

Physicists at the University of Regensburg (UR) led by the research groups of Professor Dr. Christoph Strunk / Dr. Nicola Paradiso and Professor Dr. Jaroslav Fabian made an exciting discovery: In their publication just published in Nature Nanotechnology, the research teams experimentally demonstrate a dramatic sign change of the supercurrent diode effect. The corresponding experimental data are in quantitative agreement with the theory of Dr. Andreas Costa, also a physicist at the Uni

 

1 commentaire:

  1. selon cet article :
    "A trio of astrophysicists, two from Colgate University and the third from the University of Texas, has found evidence of dark stars courtesy of data from the James Webb Space Telescope. In their study, reported in Proceedings of the National Academy of Sciences, Cosmin Ilie, Jillian Paulin and Katherine Freese, analyzed three galaxies spotted by the JWST and how they might relate to dark stars".

    il existerait des étoiles noires. Cela est en accord avec la théorie DUO5, qui les prédit comme étant des amas de matière noire expulsées par les galaxies. Ces expulsions sont cousines des rayons cosmiques car elles ont la même source, i.e, la surdensité des Bodys au centre des galaxies.

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