Avi Blizovsky

Perseverance completed a marathon on Mars – and was filmed from space

Perseverance completed a marathon on Mars – and was filmed from space

  • No comments
NASA's Gamma rover covered 42.195 kilometers in five years and four months. A day before the milestone, the HiRISE camera captured it from orbit around Mars, as a tiny dot surrounded by the tracks of its wheels.
Climate crisis becomes a culture war: How populism is hindering the fight

Climate crisis becomes a culture war: How populism is hindering the fight

  • No comments
As the evidence for warming becomes more tangible, climate denial is not disappearing but changing form: Instead of simply challenging the science, populist leaders are portraying climate policy as a conspiracy by experts and elites against “the citizens.”
Atomic bomb in space. Illustration: depositphotos.com.

Protons in space may reveal nuclear weapons hidden in satellites

  • No comments
A study published in Nature suggests using a tiny satellite to detect neutrons that are created when high-energy protons hit nuclear material. According to calculations, monitoring from a distance of four kilometers for about a week could be enough – but
Hidden fifth dimension may create natural dark matter resonance

Hidden fifth dimension may create natural dark matter resonance

  • No comments
A new theoretical model suggests that the geometry of a compact extra dimension naturally determines the ratio of the masses of a dark matter particle and a dark photon. The resulting resonance may explain how dark matter
IBM quantum computer helped calculate how tritium binds to molten salt in fusion reactors

IBM quantum computer helped calculate how tritium binds to molten salt in fusion reactors

  • No comments
Researchers combined a Heron quantum processor with supercomputers to calculate the electronic structure of FLiBe clusters, a material being considered for tritium production in fusion reactors. The results show that the quantum calculation of parts of the problem was
Israeli study: Repeated cosmetic treatments may take on addictive properties

Israeli study: Repeated cosmetic treatments may take on addictive properties

  • No comments
One in five women in the sample who had undergone cosmetic treatments was at moderate to high risk for a pattern of compulsive use. The factors most strongly associated with this were low body image and problematic use.
Engineered ribozyme demonstrates how ancient RNA could have repaired itself

Engineered ribozyme demonstrates how ancient RNA could have repaired itself

  • No comments
An enzyme made of RNA selectively recognizes a chemical mark that characterizes broken strands and attaches additional RNA to them. The discovery strengthens the possibility that ancient life in the RNA world could have preserved genetic information even without proteins
Egyptian princesses from 4,000 years ago were probably skilled archers

Egyptian princesses from 4,000 years ago were probably skilled archers

  • No comments
A re-examination of the remains of a princess and a royal son buried in Dahshur found signs of repeated and strenuous use of upper body muscles, along with healed fractures. Researchers estimate that the bows, arrows, and weapons found in their graves
Dust may betray supermassive black holes kicked out of galaxy centers

A third planet has been discovered around Beta Pictoris after hiding in the archives for more than a decade.

  • No comments
Beta Pictoris d is 100 times fainter than the first planet imaged in the system and is among the lowest-mass planets ever imaged from the ground. After its identification with the VLT, astronomers discovered that it appeared
To mimic a single human neuron requires a deep neural network

To mimic a single human neuron requires a deep neural network

  • No comments
Researchers from the Hebrew University used artificial intelligence as a “computational twin” of a neuron and found that the branched structure of dendrites and the nonlinear responses at synapses give human cells high computational complexity. The finding does not prove that a single cell
NASA: Large heat reservoir developing under the Pacific Ocean, strengthening El Niño

NASA: Large heat reservoir developing under the Pacific Ocean, strengthening El Niño

  • No comments
Measurements from the Sentinel-6 Michael Freilich satellite reveal rising sea levels, indicating that warm water is accumulating beneath the surface. According to NOAA's latest forecast, there is an 81% probability that
What makes a ball curve? The engineering behind modern football

What makes a ball curve? The engineering behind modern football

  • No comments
Computer simulations help study the airflow around the ball, the loads on the shoes and the integration of sensors into the game balls. However, even the most advanced model needs to be validated in laboratory and field tests.
Dust may betray supermassive black holes kicked out of galaxy centers

Dust may betray supermassive black holes kicked out of galaxy centers

  • No comments
An analysis of about 100 quasars has found a statistical relationship between the velocity shift of gas near a black hole and the amount of dust obscuring it. The researchers suggest that the pattern could be used to detect black holes.
The Indian Ocean may provide advance warning of prolonged drought periods in Israel

The Indian Ocean may provide advance warning of prolonged drought periods in Israel

  • No comments
Analysis of more than seven decades of climate data suggests a link between temperature changes in the Indian Ocean and high-pressure systems that prevent rain in the eastern Mediterranean. December conditions may provide a clue
When France and Spain meet in the semifinals: Does the World Cup favor democracies?

Does the World Cup favor democracies?

  • No comments
An analysis by Professor John A. Torres and published on The Conversation found that democracies are particularly overrepresented in World Cup finals. Tonight at 22:00 PM, France and Spain will meet in the first semi-final.
Will human-level artificial intelligence remain out of reach?

Will human-level artificial intelligence remain out of reach?

  • 5 תגובות
Computer scientist Peter J. Denning challenges the quest for artificial general intelligence. He argues that human intelligence includes physical, social, and cultural knowledge that cannot be fully represented by a computer. This is the thesis presented in a new book,
President of the State Yitzhak Herzog at the annual conference of the Israeli Society for Ecology and Environmental Sciences 2026, held in Jerusalem. Photo by press release

President Herzog: Climate must be above all controversy

  • No comments
At the 54th Annual Science and Environment Conference in Jerusalem, the President of the State called for regional cooperation in the areas of climate, energy and food security. The Mayor of Jerusalem presented the alternative to the White Ridge Plan, and during the conference, awards were presented
70 million shekels for a joint Israeli infrastructure for biological artificial intelligence models

70 million shekels for a joint Israeli infrastructure for biological artificial intelligence models

  • 2 תגובות
The IBFI consortium will attempt to create a unified representation method for molecular, cellular, and clinical data and a platform for developing models for drug discovery and personalized medicine. Partners include: Nvidia, Teva, Sheba, CytoReason, TerraCyte, and MeMed
A general illustration of a star being torn apart by the tidal forces of a black hole. Some of the material forms a hot accretion disk, from which a high-speed wind is emitted. The researchers speculate that a similar mechanism, within a binary system, may explain the AT2024wpp event. Image: NASA's Goddard Space Flight Center/CI Lab.

A black hole probably ripped apart a massive star, creating an unprecedented cosmic flash

  • No comments
The AT2024wpp event, known as the “whip,” reached a brightness of hundreds of billions of suns and evolved at an extraordinary speed. Researchers estimate that a black hole in a binary system ripped apart the companion star, creating a hot accretion disk and rapidly launching a wind.
The evolution of human body size was not a straight path of growth.

The evolution of human body size was not a straight path of growth.

  • 3 תגובות
An analysis of 386 fossils from 21 hominin species found a combination of a gradual increase in body weight and a significant jump that occurred within the genus Homo about two million to two and a half million years ago. At the same time,
China recovers orbital launch stage for first time – and traps it in a containment net at sea

China recovers orbital launch stage for first time – and traps it in a containment net at sea

  • No comments
In the maiden flight of the Long March 10B, a satellite was launched into orbit, and the first stage returned vertically and was captured using hooks and a net stretched over an offshore platform. This is the first achievement of its kind in China and the world's first capture of a satellite.
Naomi Orseks: The threat to public trust in science also comes from within the scientific system

Naomi Orseks: How Monsanto fabricated and infiltrated a fake scientific article that led to its deregulation of a toxic substance

  • 4 תגובות
In a remote lecture at the annual Science and Environment Conference in Jerusalem, the Harvard University historian of science argued that the data does not indicate a widespread crisis of public trust in science. She said that articles written under the influence of corporations could shape
Cosmological Hint: Dark Matter and Neutrinos May Interact

Cosmological Hint: Dark Matter and Neutrinos May Interact

  • No comments
Combining observations of the cosmic microwave background radiation and the weak gravitational lensing effect found a preference of almost three standard deviations for a model in which momentum is transferred between dark matter and neutrinos. The interaction may explain why matter in the universe
Illustration of the ambipolar vortex in the protostellar core L1544. The blue lines represent the magnetic field; the red dots are ions and the green dots are neutral molecules. In the inner part of the core, the neutral molecules partially detach from the field and fall towards the center at a higher speed than the ions. Illustration: Yurika Nakamura and Doris Arzoumanian, Kyushu University.

The cosmic "slip" that allows a star to begin being born has been measured

  • No comments
Magnetic fields can delay the collapse of clouds of gas and dust and delay the birth of stars. Using the 30-meter IRAM radio telescope, researchers measured a difference of about 50 meters per second between
Can an algorithm make decisions without a doctor? Israel to test autonomous medical artificial intelligence

Can an algorithm make decisions without a doctor? Israel to test autonomous medical artificial intelligence

  • No comments
The Ministry of Health and the Innovation Authority are launching a regulatory sandbox for medical artificial intelligence with a high level of independence. The key test is not just whether the algorithm is right most of the time, but whether it knows when it is not.
The color of feces reveals from space what Adélie penguins eat

The color of feces reveals from space what Adélie penguins eat

  • No comments
Satellites can't spot a single penguin from the Landsat program, but they can identify the spots left by nesting colonies. New research shows that the spectral signature of droppings can reveal not only the
Cloud seeding, Chemtrails. Illustration: depositphotos.com.

In the Knesset, they mixed real climate engineering with the "spraying" conspiracy

  • One response
Climate engineering by reflecting some of the sun's radiation is a real, dangerous, and controversial field of research that justifies regulation and transparency. However, in the Knesset debate, the scientific issue was mixed with conspiratorial claims about existing "sprays" in the sky.
James Webb observation of the protocluster SPT2349-56 and the galaxy C26 with a long gas tail

Ancient galaxy caught as environment robs it of raw material for star formation

  • No comments
Observations by the James Webb Space Telescope and the ALMA array have revealed a massive galaxy in a young protocluster, only about 1.4 billion years after the Big Bang, with more than half of its reservoir of cold gas already pushed out.
Israeli science relies on the connection between universities, public funding, security, industry and entrepreneurship. American experience shows that this connection requires freedom of research, stability and long-term investment. Illustration: The Knowledge website using artificial intelligence.

America in Test Tube 8: What can Israel learn from 250 years of American science?

  • No comments
Israel has excellent universities, advanced high-tech, and high spending on R&D, but American experience shows that scientific success requires more than just initiatives: basic research, stable public funding, academic freedom, the absorption of researchers, and bridges between
Mysterious radio signals are returning from space – and one star system may explain their origin

America in a Test Tube 7: Who decides what scientists are allowed to do?

  • No comments
In 1976, Cambridge residents demanded a say in whether to allow recombinant DNA research in their city. The confrontation between researchers and the public gave rise to a citizen oversight committee and helped shape a model in which innovation, safety, and democracy need not be at odds.
Astronaut Scott Kelly and cosmonaut Mikhail Kornienko on the International Space Station. The pair spent 340 days in space as part of a mission designed to study the effects of prolonged spaceflight on the human body. Credit: NASA

Radiation and microgravity caused changes in the liver that resemble accelerated aging in astronauts who spent a long time in space.

  • No comments
Researchers at the University of Central Florida exposed an animal model to simulated microgravity and radiation that simulates deep space travel. The liver showed changes associated with cellular aging, inflammation, and fibrosis. Some of the genetic signatures resembled data from samples
Map of excess gamma radiation at the center of the Milky Way on an optical image of the galaxy

Does the mysterious glow at the center of the Milky Way actually come from dark matter?

  • No comments
Researchers used more than a million simulations to analyze the location and energy of gamma-ray photons from the center of the Milky Way. The findings don't prove that dark matter is responsible for the radiation, but they weaken a key argument that
Jeff Bezos, CEO of Blue Origin

Blue Origin addresses investors for the first time: seeks to raise $10 billion

  • No comments
Blue Origin, which has been funded primarily by Jeff Bezos since its inception, is reportedly in talks to raise $10 billion in private capital. The money is intended to support expanded launch operations, lunar missions, satellite networks, and rehabilitation.
A historical illustration divided into three parts: a research laboratory from the Manhattan Project era; a pecan branch and agricultural fields representing the knowledge of enslaved people; and medical and legal documents from the era of American eugenics. The illustration does not depict violence or casualties, but the institutions and documents through which scientific power was exerted.

America in Test Tube 6: The Dark Side of Scientific Progress: The Bomb, Eugenics, and Erased Knowledge

  • No comments
Three chapters in American history reveal the complex relationship of science with power: the secrecy and lack of oversight of the Manhattan Project, the erasure of enslaved people's agricultural knowledge, and the use of eugenics to justify forced sterilization and discrimination.
Simulation of a quasar powered by matter falling into a supermassive black hole

Euclid Space Telescope Discovers the Earliest Quasars Ever Observed

  • 2 תגובות
The Euclid Space Telescope has helped discover 31 quasars from the early universe, 14 of them at redshifts of 7 or greater. The two most distant were observed as they were about 670 million years after the Big Bang, and again
A cross-section of the Earth showing the hot core and the magnetic field lines surrounding the planet.

The flow of iron in the Earth's outer core has changed direction beneath the Pacific Ocean

  • 2 תגובות
Researchers have reconstructed the movement of liquid iron in the Earth's outer core and found that in 2010 the direction of flow reversed over a large area beneath the Pacific Ocean. Data from Swarm satellites and other missions show that
A historical-contemporary illustration depicting the transition from the Santa Clara plantations to the electronics and chip industry. In the background, a university campus, electronic components, and a space system are visible, illustrating the connection between government investment, academic research, and private entrepreneurship.

America in Test Tube 5: The Country That Built Silicon Valley – and the Entrepreneurs Who Prefer to Forget It

  • No comments
The American technology industry loves to tell stories of entrepreneurs who operated in garages despite the government. But Silicon Valley grew out of military orders, the space race, grants to Stanford University, immigration policy, and government aid to the chip industry – and
Researchers have programmed human cells to perform logical operations and make decisions

Researchers have programmed human cells to perform logical operations and make decisions

  • No comments
A genetic system developed by researchers at the Hebrew University of Jerusalem allows cells to process several signals simultaneously, choose a response based on the combination of signals, and even alert to an abnormal condition. In the future, the approach may be used to develop therapeutic cells.
A historical photograph of Thomas Edison in his chemical laboratory in Menlo Park. The “Invention Factory” he founded in 1876 replaced the image of the lone inventor with a multidisciplinary team that combined research, engineering, manufacturing, and the establishment of commercial companies.

America in Test Tube 4 – From Edison's Invention Factory to the Startup Economy: Who Will Bridge Science and Industry?

  • No comments
From Thomas Edison's Invention Factory to Bell Labs, American corporations have created science alongside products. Since the 1980s, much of the role has shifted to universities and start-ups—a system that excels in certain areas,
Hubble reveals a star-studded masterpiece: more than half a million ancient stars

Hubble reveals a star-studded masterpiece: more than half a million ancient stars

  • No comments
The new image of the globular cluster Messier 3 was released to mark the 250th anniversary of the United States' independence. The distant cluster contains hundreds of variable stars, stars that appear young for their age, and two stellar populations that may indicate
Is the asteroid Kamua'aluwa a fragment from the moon? The Chinese spacecraft will try to decide

Is the asteroid Kamua'aluwa a fragment from the moon? The Chinese spacecraft will try to decide

  • No comments
The Chinese spacecraft Tianwen-2 is approaching the asteroid Kamoʻoalewa, one of Earth's semi-satellites. It will attempt to collect samples from its surface and return them to the laboratory, where researchers can determine whether it is a rock dislodged from the
Artificial intelligence translates protein sequences into natural language descriptions

Artificial intelligence translates protein sequences into natural language descriptions

  • 2 תגובות
The BetaDescribe system, developed by researchers from the Technion and Tel Aviv University, takes a sequence of amino acids and produces a verbal description of the protein's function, chemical activity, and possible binding sites. The researchers hope the system will help choose
Ice and snow along a rocky coastline in Antarctica

The Mountains Beneath the Ice: Why Antarctica Frozen Millions of Years Before the Arctic

  • No comments
New models suggest that the breakup of Gondwana triggered profound processes that elevated East Antarctica. The high mountains allowed snow to survive in the summer and develop into the world's largest ice sheet.
A researcher examines culture bottles as part of the research and production of penicillin during World War II.

America in Test Tube – Chapter Three The War That Built the American Science Funding System

  • No comments
Until World War II, the U.S. government invested relatively little in research conducted by universities and companies. The emergency gave rise to research contracts, expert evaluations, overhead funding, and rules for distributing patent rights—mechanisms that continue
Sea anemone used in research on the CARDIB protein and protection against viruses

The “Brake” That Protects Against Viruses: The Sea Anemone Reveals an Immune Pathway We Didn’t Know Existed

  • No comments
Researchers from the Hebrew University of Jerusalem and the University of North Carolina at Charlotte discovered that the CARDIB protein normally suppresses the sea anemone's antiviral response, but in its absence, viruses multiply more easily. The finding suggests that
A huge study will try to find out where the Judean Desert Scrolls were written.

A huge study will try to find out where the Judean Desert Scrolls were written.

  • No comments
A €2.5 million ERC grant will fund a five-year project that will combine chemical testing, paleography, scroll structure research and artificial intelligence. The researchers will examine around 250 parchment and papyrus samples and use them to map more
Students in a biology lab at Johns Hopkins University, 1920. From the university website https://hub.jhu.edu/2026/07/02/science-commentary-ron-daniels-innovation-research-funding/

America in Test Tube 2: The German Model That Gave Birth to the American Research University

  • No comments
When Johns Hopkins University opened in 1876, most institutions of higher education in the United States were still focused on teaching and training the elite. The new combination of original research, doctoral studies, and teaching created a different kind of institution.
Prof. Jaynandra K. Jain at the Wolf Prize Ceremony in the Knesset

Wolf Prize winner Jainendra Jain in a special interview: How entangled electrons became composite fermions

  • No comments
The Wolf Prize laureate in physics explains how the idea of ​​composite fermions solved the mystery of the fractional quantum Hall effect, what the connection is between his theory and the experiments of Motti Heiblom and James Eisenstein, and why he accepted it.
Mysterious radio signals are returning from space – and one star system may explain their origin

Mysterious radio signals are returning from space – and one star system may explain their origin

  • One response
Astronomers have identified ASKAP J1745 as a binary system in which a white dwarf is accreting material from a companion star. The radio and X-ray bursts it produces throughout its orbit may help solve the mystery of long-period radio transients.
250 years of American science. Illustration: The Science website using AI

America in Test Tube – Chapter 1 – 250 Years of Promise: American Science Born as Part of the Democratic Idea

  • No comments
Science website logo
SEARCH