dimanche 28 avril 2024

SCIENCES ENERGIES ENVIRONNEMENT .SUR GOOGLME

 Dear olivier hartmanshenn,

Here is your customized Science X Newsletter for week 17:

New evidence found for Planet 9

A small team of planetary scientists from the California Institute of Technology, Université Côte d'Azur and Southwest Research Institute reports possible new evidence of Planet 9. They have published their paper on the arXiv preprint server, and it has been accepted for publication in The Astrophysical Journal Letters.

NASA's Voyager 1 resumes sending engineering updates to Earth

For the first time since November, NASA's Voyager 1 spacecraft is returning usable data about the health and status of its onboard engineering systems. The next step is to enable the spacecraft to begin returning science data again. The probe and its twin, Voyager 2, are the only spacecraft to ever fly in interstellar space (the space between stars).

Researchers detect a new molecule in space

New research from the group of MIT Professor Brett McGuire has revealed the presence of a previously unknown molecule in space. The team's open-access paper, "Rotational Spectrum and First Interstellar Detection of 2-Methoxyethanol Using ALMA Observations of NGC 6334I," was published in the April 12 issue of The Astrophysical Journal Letters.

Why do we move slower the older we get? New study delivers answers

It's one of the inescapable realities of aging: The older we get, the slower we tend to move—whether we're walking around the block or just reaching for the remote control.

Climb stairs to live longer, say cardiologists

Climbing stairs is associated with a longer life, according to research presented at ESC Preventive Cardiology 2024, a scientific congress of the European Society of Cardiology (ESC).

Emperor penguins perish as ice melts to new lows: Study

Colonies of emperor penguin chicks were wiped out last year as global warming eroded their icy homes, a study published Thursday found, despite the birds' attempts to adapt to the shrinking landscape.

Feedback loop that is melting ice shelves in West Antarctica revealed

New research has uncovered a feedback loop that may be accelerating the melting of the floating portions of the West Antarctic Ice Sheet, pushing up global sea levels.

Researchers reconstruct landscapes that greeted the first humans in Australia around 65,000 years ago

Seventy thousand years ago, the sea level was much lower than today. Australia, along with New Guinea and Tasmania, formed a connected landmass known as Sahul. Around this time—approximately 65,000 years ago—the first humans arrived in Sahul, a place previously devoid of any hominin species.

Record-breaking heat and humidity predicted for tropics this summer

A new statistical analysis of the interaction between El Niño and rising global temperatures due to climate change concludes that the approaching summer in the tropics has nearly a 7 in 10 chance of breaking records for temperature and humidity.

Hunting for the elusive: IceCube observes seven potential tau neutrinos

Researchers at the IceCube Neutrino Observatory in Antarctica have found seven signals that could potentially indicate tau neutrinos—which are famously hard to detect—from astrophysical objects.

First experimental proof for brain-like computer with water and salt

Theoretical physicists at Utrecht University, together with experimental physicists at Sogang University in South Korea, have succeeded in building an artificial synapse. This synapse works with water and salt and provides the first evidence that a system using the same medium as our brains can process complex information.

Large Hadron Collider experiment zeroes in on magnetic monopoles

The late physicist Joseph Polchinski once said the existence of magnetic monopoles is "one of the safest bets that one can make about physics not yet seen." In its quest for these particles, which have a magnetic charge and are predicted by several theories that extend the Standard Model, the MoEDAL collaboration at the Large Hadron Collider (LHC) has not yet proven Polchinski right, but its latest findings mark a significant stride forward.

Japan's moon lander wasn't built to survive a weekslong lunar night. It's still going after 3

Japan's first moon lander has survived a third freezing lunar night, Japan's space agency said Wednesday after receiving an image from the device three months after it landed on the moon.

NASA's Chandra releases timelapse movies of Crab Nebula and Cassiopeia A

New movies of two of the most famous objects in the sky—the Crab Nebula and Cassiopeia A—are being released from NASA's Chandra X-ray Observatory. Each includes X-ray data collected by Chandra over about two decades. They show dramatic changes in the debris and radiation remaining after the explosion of two massive stars in our galaxy.

Announcing the birth of QUIONE, a unique analog quantum processor

Quantum physics requires high-precision sensing techniques to delve deeper into the microscopic properties of materials. From the analog quantum processors that have emerged recently, quantum-gas microscopes have proven to be powerful tools for understanding quantum systems at the atomic level. These devices produce images of quantum gases with very high resolution: They allow individual atoms to be detected.

How evolution has optimized the magnetic sensor in birds

Migratory birds are able to navigate and orientate with astonishing accuracy using various mechanisms, including a magnetic compass. A team led by biologists Dr. Corinna Langebrake and Prof. Dr. Miriam Liedvogel from the University of Oldenburg and the Institute of Avian Research "Vogelwarte Helgoland" in Wilhelmshaven has now compared the genomes of several hundred bird species and found further evidence that a specific protein in the birds' eyes is the magnetoreceptor which underlies this process.

Astrophysics research advances understanding of how gamma-ray bursts produce light

Gamma-ray bursts (GRBs) are intense bursts of gamma radiation, typically generating more energy in a few seconds than the sun will produce over its ten-billion-year lifetime. These transient phenomena present one of the most challenging puzzles in astrophysics, dating back to their accidental discovery in 1967 by a nuclear surveillance satellite.

New JWST observations reveal black holes rapidly shut off star formation in massive galaxies

New research published in Nature showcases new observations from the James Webb Space Telescope (JWST) that suggest black holes rapidly shut off star-formation in massive galaxies by explosively removing large amounts of gas.

Researcher finds that wood frogs evolved rapidly in response to road salts

When we think of evolution, we think of a process that happens over hundreds or thousands of years. In research published in Ecology and Evolution a team led by Rick Relyea, Ph.D., professor of biological sciences and David M. Darrin Senior Endowed Chair at Rensselaer Polytechnic Institute, found a species of frog that has evolved over the course of merely 25 years. The adaptation was spurred on by something many assume is innocuous: salt.

Illinois residents encouraged to destroy the eggs of invasive insects to slow spread

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