Cosmic radiation

The path of the Solar System through the Local Interstellar Cloud. The cloud profile is preserved as an interstellar fingerprint in Antarctic ice. Credit: B. Schröder/HZDR/NASA/Goddard/Adler/U.Chicago/Wesleyan

Evidence from Antarctic ice: Earth passes through remnants of ancient supernova

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Researchers have found traces of iron-60, an isotope originating from a supernova, in Antarctic ice, showing that the solar system moved within an ancient interstellar cloud.
Cosmic rays are composed mainly of protons, but also of helium, carbon, oxygen, and iron nuclei. Credit: Chinese Academy of Science

After a century, scientists discover a hidden rule governing cosmic rays

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A long-standing cosmic mystery is beginning to yield new clues as researchers discover a strikingly consistent pattern in the behavior of high-energy particles moving through the universe.
Moon colony. Illustration: depositphotos.com

Life on the Moon Won't Be Romantic: This Is What the True Test of the Human Body Will Look Like

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In preparation for an extended stay on the lunar surface, scientists warn of a dangerous combination of low gravity, cosmic radiation, lunar dust, isolation, and possible damage to bodily systems.
Illustration of the Artemis II spacecraft's trajectory and the lack of radiation protection for most of the trajectory. A. Fisher/Science

Artemis II returns humans to lunar orbit – and cosmic radiation becomes the main health challenge

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Space and astronomy, space medicine, cosmic radiation, Artemis II, NASA, Orion, space flight safety, personalized medicine
The Barnard 68 nebula is located in the Euphucus constellation, 400 light-years from Earth. Using the James Webb Space Telescope, Dr. Bialy and his team measured for the first time the signals emitted from this nebula as a result of the excitation of molecular hydrogen by cosmic rays. Courtesy of the European Southern Observatory (ESO)

An international team led by researchers at the Technion found the connection between cold nebulae, cosmic rays, and star formation.

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A manned mission to Mars. Illustration: depositphotos.com

Neil deGrasse Tyson: A manned mission to Mars is impractical at this point

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In his recent podcast, he explains why distance, launch windows, radiation, and the rocket equation make “The Road to Mars” a project that requires decades of technological and political stability.
An Airbus A320 aircraft in service with JetBlue. Illustration: depositphotos.com

Cosmic radiation, bit flipping, sudden drop and giant shutdown: Why was Airbus forced to ground more than 6,000 aircraft?

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A rare bit-flipping incident in an A320 flight computer on a JetBlue flight has led to a global wave of emergency updates and hardware fixes for the A320 family, highlighting the vulnerability of microchips to high-altitude cosmic radiation.
Cosmic radiation from an unknown source. Illustration: depositphotos.com

After more than a century, scientists are finally getting closer to deciphering the sources of cosmic rays.

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A look at the interior of the Earth a billion years ago: Tangled magnetic field lines inside the core are linked to the external magnetic field. (Scientifically correct image from a study simulation). Credit: ETH Zurich / SUS Tech

Earth's ancient shield: Scientists crack billion-year-old mystery of magnetic field

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A new model reveals how the Earth's core maintained a stable magnetic field even before the inner core formed, providing insights into the origins of life and our technological future.
When archaeology and physics meet, new depths are revealed. Illustration courtesy of Tel Aviv University

Breakthrough: Using Muons from Cosmic Radiation to Identify and Map Underground Spaces at Archaeological Sites

A multidisciplinary team at Tel Aviv University has developed the technology that will enable "X-ray imaging" of the underground for archaeological excavations.
The outer solar system is bathed in cosmic radiation. Illustration: depositphotos.com

Cosmic radiation may fuel hidden life on Mars and beyond

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The study proposes a new definition: the "radiolitic habitable zone" - in contrast to the classic "habitable zone" (the region around a star that allows liquid water to exist on the surface), the radioolitic habitable zone focuses on places where water exists.
The Emilio Segre Cosmic Radiation Observatory on the summit of Mount Hermon. Photo courtesy of Ariel University

Secrets of Mount Hermon: Powerful gamma radiation measured in dry lightning storms

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A study by Ariel University and the School of Sustainability at Reichman University identified a gamma-ray enhancement (TGE) in two unusual events in January 2018 at the summit of Mount Hermon — without precipitation — and demonstrates electron acceleration in clouds and the effects
A vast spiral galaxy alongside the Milky Way for a scale comparison of the universe. Credit: Bagchi and Ray et al/Hubble Space Telescope

Monstrous jets from black hole in spiral galaxy may foretell Milky Way's terrifying future

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A giant spiral galaxy with powerful jets from a black hole has shocked scientists, because it shows that even galaxies like ours can release dangerous radiation at some point.
Radiation from active galactic nuclei (AGN), usually thought to be deadly, may actually help life thrive – by strengthening the protective ozone layer in oxygen-rich atmospheres, thus making planets more resilient. Credit: IRLab/NSF/AURA/J. daSilva/M. Zamani

Black holes may contribute to the flourishing of life on nearby planets

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New research reveals that radiation from active galactic cores can strengthen the protective ozone layer in oxygen-rich atmospheres and protect life from extinction.
Night launch of a Falcon 9 rocket for the Transporter 13 project, in which 9 Israeli student satellites were launched. Photo: SpaceX

A group of 9 research satellites built by Israeli high school students from all sectors was launched into space

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Artist's impression of one of the Voyager spacecraft launched in 1977, Credit: NASA/JPL-Caltech

NASA will shut down instruments on Voyager spacecrafts to save power

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On February 24, 2025, the radiation sensor system on Voyager 1 was shut down, and on March 24, the same system will be shut down on Voyager 2.
This image taken by Webb shows an ancient quasar (in the red circle) with fewer neighboring galaxies than expected. Credit: Christina Eilers/EIGER team

The Webb Space Telescope discovers quasars where they shouldn't exist

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Astronomers have used the Web to discover individual ancient quasars of uncertain origin
An astronaut exercises in space to keep fit and healthy. Illustration: depositphotos.com

Will astronauts' kidneys survive a round trip to Mars?

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The results showed that both human and animal kidneys undergo "remodeling" by the conditions in space, with specific renal tubules responsible for calibrating calcium and salt balance showing signs of shrinkage after less than a month
A blazar fires a jet of cosmic rays and neutrinos towards Earth and is absorbed by the IceCube facility at the South Pole. Figure IceCube/NASA

A collaboration between the neutrino detector and a space telescope led to the identification of a source producing cosmic rays for the first time

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Protective vest against radiation. Photo: StemRad company

Lockheed Martin and Israel's StemRad are testing a radiation shielding vest for first responders for possible use on space flights

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Prof. Kyle Kramer, New York University. Photo: Avi Blizovsky

Turn your mobile phone into a cosmic particle detector

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Orion Nebula. Photo: NASA. Processing: shutterstock

Low orbit - an ULTRASAT satellite based on Israeli technology, will scan the sky in the ultraviolet range

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Victor Hess prepares to fly in a hot air balloon

An Unfolding Mystery: One Hundred Years of the Discovery of Cosmic Radiation

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Illustration of the Van Allen belt, photo: NASA

A belt of antimatter surrounds the Earth

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20 Future NASA Missions

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Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

Cosmic rays are too weak to affect the climate

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