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Avi Blizovsky

Research shows that giant gas planets in other star systems often prevent the habitability of neighboring Earth-like planets by disrupting orbits and climates. An artist's rendering of an exoplanet system full of giant planets. Credit: NASA/Dana Berry

Chaos rules the cosmos: How giant gas planets threaten life on nearby Earth-like worlds

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Jupiter, the largest planet by far in our solar system, plays an important protective role. Its enormous gravitational field deflects comets and asteroids that might otherwise hit Earth, helping to create a stable environment for life to exist. But giant planets elsewhere in the universe don't necessarily protect life in their smaller, rocky neighbors.
Trust in science in the age of artificial intelligence. Illustration: depositphotos.com

Declining public trust in scientists and the contribution of science to humanity in the US

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This is according to a comprehensive survey published by the PEW Research Institute. The worst situation is among the voters of the Republican Party, but also among the Democrats, the majority who still show confidence in science is shrinking
An artist's rendering of the huge void and the filaments and walls that surround it. Credit: Pablo Carlos Budassi

Lost in Space: Is a Vast Void Dividing the Universe?

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The "mourning tension" in cosmology has recently raised questions about the standard cosmological model
Winter solstice versus summer solstice. Illustration: depositphotos.com

The winter solstice - the shortest day of the year

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On Friday, 22/12/23 at 05:26 viewers from Jerusalem will have the point of time where the length of the day reverses, winter ends and spring begins in the Northern Hemisphere. The length of the day - ten hours and four minutes
This image taken by the Hubble Space Telescope shows Aram-Mador 2105-332, a unique galaxy system in the Microscope Group. It is known for its emission line galaxies, which indicate vigorous star formation. It appears in Hubble's picture of the week, and that the names were given to galaxies using astronomical coordinates. Credit: ESA/Hubble & NASA, J. Dalcanton, Acknowledgment: L. Shatz

Parade of Galaxies: The stunning star show from Hubble

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Two of these galaxies close to each other are a rare type of emission line galaxies, because they are undergoing a massive process of new star birth. The others are at different distances but line up nicely in this Hubble shot
Elon Musk. Illustration: depositphotos.com

False prophets: how Mark Zuckerberg and Elon Musk are misleading the digital economy

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A study revealed that solutionism - the belief that technological solutions can address social problems while achieving profit is dominant among the leaders of technology companies and is spreading in the digital economy. The authors of the study criticize this ideology, and claim that it ignores democratic processes
pulsar. Courtesy of Breakthrough Listen

Breakthrough Listen project scanned entire galaxies for signals from advanced intelligent beings

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The team identified 1,519 candidate signals that could not be attributed to radio frequency interference. After algorithmic processing, matching the signal properties with known disturbances, and extensive visual inspection, no convincing evidence of technological signatures was found.
This artist impression shows the pulsar PSR J1023+0038 stealing gas from its companion star. This gas accumulates in the disk around the pulsar, slowly falls into it and is eventually ejected in a narrow jet. In addition, there is a wind of particles blowing from the pulsar, represented in the figure by a cloud of very small dots. This wind collides with the gas falling in, heating it and causing the system to glow brightly in X-rays, UV and visible light. Eventually clumps of this hot gas are ejected with the jet, and the pulsar returns to its initial, weaker state, and repeats the cycle. This pulsar has been observed to continuously switch between these two states every few seconds or minutes. Credit: ESO/M. Kornmesser

Cosmic Shells: Solving the Mystery of Strange Pulsar Brightness Changes

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Astronomers have deciphered the strange behavior of the pulsar J1023+0038. This pulsar, which rapidly transitions between two brightness states, emits material in sudden bursts that cause these transitions. Thanks to this breakthrough, which included extensive observations and analyses, we better understand the dynamics of pulsars.
An artist's illustration of the six newly discovered planets orbiting their star in resonance. Credit: Roger Thibaut (NCCR PlanetS)

In a harmonious rhythm: deciphering the "unsolvable puzzle" of a system with six planets

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An international team of astronomers discovered a system of six planets orbiting the star HD110067 in a unique harmonic resonance
National Academy of Sciences Hanukkah ceremony 2023. Public photo

The president of the Academy of Sciences, Prof. David Harel, calls on the presidents of Harvard and MIT to resign, as did the president of the University of Pennsylvania

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"My 45-year-old pride in the doctorate I received from the Institute of Technology - these days is being replaced by great shame" * These words were said at the ceremony of welcoming eight new members to the Israel National Academy of Sciences held every year during the Hanukkah holiday
Mediterranean. Illustration: depositphotos.com

Researchers from Israel reveal the next generation of virtual reality and climate models

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Intel's research laboratories reveal 31 research projects that shape the future of artificial intelligence innovation, including two studies from Israel
Liz Magill, outgoing president of the University of Pennsylvania. A screenshot from the testimony she gave in Congress at the hearing where she was asked about her attitude to the anti-Semitic incidents on campus. Screenshot.

The president of the University of Pennsylvania resigned; "Answered legal answers to moral questions"

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Magill testified along with two other presidents, Claudine Gay of Harvard and Sally Konerbluth of MIT, at a hearing held last week at the Congressional Education Committee in Washington. The three answered the committee members' question whether calling to destroy Israel is anti-Semitism: "It depends on the context"
Technion campus. Source: Technion / Israel Institute of Technology, Wikimedia.

This year in most universities it will open on 31/12/23; The Technion on 7/1/24

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This is what the Board of Heads of the Research Universities (RA) announced this morning: "For the past few weeks, we have been working on detailed outlines for returning to studies, in which a diverse basket of adjustments will be used alongside finding individual solutions for all those who will still serve in the reserves."
The interference experiment

A new radical theory unites Einstein's theories of gravity with quantum mechanics

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Two articles by University College London researchers have been published in Nature Communications and Physics Magazine in which the researchers offer an elegant way to reconcile the contradiction between the two theories, each of which affects on a different scale
The central region of the Milky Way galaxy as photographed by the Sobro telescope. The image shows many stars in a field of view that is about 0.4 light-years wide. The star S0-6 (in the blue circle), the subject of this study, is about 0.04 light-years from the supermassive black hole Sagittarius A* (in the green circle). Credit: Miyagi University of Education/NAOJ

Across Time and Space: A Mysterious Star's Epic Journey to the Center of the Milky Way

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Research by an international team led by Shogo Nishiyama at Miyagi University shows that some of the stars closely circling the black hole at the center of the Milky Way galaxy may have come from further away than previously thought, completely outside the Milky Way.
Harvard President Claudine Gay at a congressional hearing on 5/12/23 about the universities' failure to address anti-Semitism. Screenshot

The stinging failure of the presidencies of the prestigious universities in the congressional hearing reflects a lack of hands in dealing with anti-Semitism and anti-Israel acts on campuses

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This is evident from the statement of opinion of the heads of the research universities in Israel regarding the statements of the presidents of universities in the United States in Congress where they claimed that freedom of expression prevails over the content
AI ALIENCE symbol. Courtesy of IBM

Meta IBM, Intel, the Hebrew University and CERN are among the dozens of entities that joined to create an alliance for safe artificial intelligence

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Meta IBM, Intel, the Hebrew University and CERN are among the dozens of entities that joined to create an alliance for safe artificial intelligence
A multi-color view of MACS0416, a galaxy cluster about 4.3 billion light-years from Earth. The image was created by combining infrared observations from NASA's James Webb Space Telescope with visible light data from NASA's Hubble Space Telescope. The resulting prismatic panorama of the blues and reds gives clues to the distances of the galaxies. Credit: NASA, ESA, CSA, STScI, Jose M. Diego (IFCA), Jordan CJ D'Silva (UWA), Anton M. Koekemoer (STScI), Jake Summers (ASU), Rogier Windhorst (ASU), Haojing Yan ( University of Missouri

The "Christmas Tree" galaxy cluster: NASA's 'Webb' and 'Hubble' join forces for a dizzying masterpiece

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The stunning image represents one of the most comprehensive views of the universe ever taken, revealing a rich landscape of galaxies along with more than a dozen variable objects discovered for the first time
IBM's System Two quantum computer. PR photo

IBM unveils a new generation of processor for quantum computing - with much improved performance

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IBM Quantum Heron introduces IBM's highest quantum computing performance ever, with 133 qubits and an architecture that improves error reduction by five times compared to its predecessor - Eagle
This image, taken by NASA's Perseverance rover on Aug. 6, 2021, shows the hole drilled into Martian rock in preparation for the rover's first attempt to collect a sample. It was captured by one of the rover's cameras in what the rover's science team called "cobblestone" in the area. The crater floor is broken and rough" in Jezero Crater. Credit: NASA/JPL-Caltech

Did life exist on Mars and other planets? We may soon know through artificial intelligence

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This artist rendering shows what the sub-Neptunian exoplanet TOI-421 b might look like. In a new study, scientists have found new evidence of how planets of this type can lose their atmosphere. Credit: NASA, ESA, CSA, and D. Player (STScI)

Cosmic disappearance: NASA solves the mystery of shrinking planets

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Researchers have found that certain planets outside the solar system are shrinking due to the loss of their atmosphere
The large galaxy at the front of the image is LEDA 2046648, and it looks just over a billion years back in time, while most of the others are even further away, and therefore look further back in time. Credit: ESA/Webb, NASA & CSA, A. Martel

Looking into the past: how James Webb is rewriting our understanding of ancient galaxies

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Symbol of the COP28 event in Dubai. Illustration: depositphotos.com

The COP28 climate conference in Dubai opens today against the background of leaks according to which large oil deals will also be held as part of it

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There is also criticism that countries are failing to meet their emission reduction targets, and that global greenhouse gas emissions continue to rise, jeopardizing the goal of not warming the planet beyond 1.5 degrees Celsius
time travel. Illustration: depositphotos.com

Exploring the reality of time travel: science fact versus science fiction

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While Einstein's theory of relativity shows the relationship between time and speed. Theoretical ideas such as wormholes offer possible methods, but practical challenges and paradoxes, such as the "grandfather paradox", complicate the feasibility of time travel in practice
Artist illustration of ultra-high energy cosmic ray astronomy to clarify very energetic phenomena in contrast to weaker cosmic rays affected by electromagnetic fields. Credit: Osaka Metropolitan University/Kyoto University/Ryuunosuke Takeshige

Not science fiction: an unknown particle with very high energy hit the Earth

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The cosmic ray detector that includes 507 ground scintillator stations, covering an extensive detection area of ​​700 square kilometers in Utah, USA. On May 27, 2023, scientists discovered a particle with an enormous energy level of 244 EeV.
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