#cosmic-rays — Public Fediverse posts

Charge-dependent spectral softenings of primary cosmic-rays below the knee: https://arxiv.org/abs/2511.05409 -> The #DAMPE #satellite sheds light on the origin of #CosmicRays: https://www.unige.ch/medias/en/2026/le-satellite-dampe-eclaire-lorigine-des-rayons-cosmiques -> China's scientific satellite sheds new light on cosmic rays: https://english.news.cn/20260430/dca45ad2bde04c2eaf8a735f09ec1679/c.html

#Radiation measurements on a recent #flight I was on, it is interesting to see that immediately after takeoff, the rate drops significantly and only goes up higher again once you gain altitude. I guess it's due to the proximity to the ground and all that concrete and #rock #geology near the surface and then the #CosmicRays in the upper #atmosphere.

There was one #HighEnergy event on the next flight. Probably due to a cosmic ray.

#radiacode #science #chart #measurement #physics

#Livescience
"
.. new study using data from China's Chang'e-4 moon lander found an area of reduced radiation from cosmic rays near the moon. The findings could be used to improve the safety of lunar explorations. .. suggests Earth's magnetic field may affect distances in space farther than scientists previously expected ..
"

https://www.livescience.com/space/space-exploration/chinese-lander-reveals-giant-cavity-of-radiation-between-earth-and-the-moon-and-it-could-change-how-lunar-exploration-is-done

25.3.2026

#Change4 #China #CosmicRays #LunarExploration #Mond #Mondlander #moon #radiation #Raumfahrt #SpaceFlight #Strahlung #Weltraumstrahlung

Cosmic rays carry antiparticles, primarily positrons and antiprotons, produced by high-energy collisions in the interstellar medium. The Alpha Magnetic Spectrometer (AMS-02) aboard the International Space Station detects these particles.

#CosmicRays #Antimatter #SpaceScience

Cosmography alert 🚨

How well is the local Large Scale Structure of the Universe known? CosmicFlows vs. Biteau's Galaxy Catalog with Cloning

by Yifei Li and Glennys Farrar
https://arxiv.org/abs/2601.20808

#Cosmology #Cosmicflows #Cosmography #Universe #Astrodon #Astronomy #Astrophysics #cosmicrays #science #news #arXiv

Excited to share my first #SpaceAustralia feature article for 2026 about an exciting and ambitious project that is unfolding 1km below the surface in regional Victoria.

Last year, I had the incredible opportunity to visit the Stawell Underground Physics Laboratory (SUPL) with Dr Katie Mack and explore the ambitious efforts of the SABRE South experiment. Shielded from cosmic rays by a kilometre of rock, this lab offers the ideal conditions to search for the faint whispers of dark matter, which still accounts for 25% of all matter in the Universe—and yet remains completely undetected.

Check out the article (and yes, check out our funky boots in the clean room!) and keep a lookout for exciting news of the detectors switching on later in 2026.

https://www.spaceaustralia.com/feature/australias-dark-matter-quest

📸 F. Morrison / SUPL

#DarkMatter #ParticlePhysics #Astronomy #Astrodon #CosmicRays

For the #PrinterSolstice2526 prompt ‘even’ -the number of quarks in a meson, a type of particle first observed & published by Bibha Chowdhuri (1913-1991) & her supervisor D.M. Bose in extensive air showers from cosmic rays. My portrait shows her, a mountain on which she gathered her data & a schematic of the cascade of particles we find in cosmic rays.

Born in Kolkata, her family’s Bramohist faith quite unusually 🧵
#womenInSTEM #histsci #particlePhysics #physics #cosmicRays #mastoArt

#cosmicrays detecting machine at #39c3

The simplest explanation for ultra-high-energy cosmic rays The highest-energy cosmic rays are too high in energy.... for bare protons. But if they're actually heavier ions instead, the simplest explanation is just plain iron-ic. bigthink.com/starts-with-... #space #cosmicrays #astro #physics

The simplest explanation for u...

Ice on Mars might be nice for building domes, but it will not protect humans from high‑energy galactic cosmic rays which is the dominant form of radiation hitting the surface of Mars. Then there are the occasional solar particle events... can you say instant sun burn!
https://timesofindia.indiatimes.com/science/building-mars-colonies-with-ice-how-scientists-plan-to-make-it-possible/articleshow/126107998.cms #Mars #Space #SpaceTravel #CosmicRays #Radiation #SolarFlares #Planets #SolarSystem

NASA’s Fermi Spots Young Star Cluster Blowing Gamma-Ray Bubbles ✨

#Ast #Astrophysics #CosmicRays #DarkMatter #Fermi #Galaxy #GammaRay #Infographic

⏩ 3 new pictures and 3 new videos from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=27&user=OptimusPrimeBot&ilshowall=1&offset=20251219130254

NASA’s Fermi Spots Young Star Cluster Blowing Gamma-Ray Bubbles https://science.nasa.gov/missions/fermi/nasas-fermi-spots-young-star-cluster-blowing-gamma-ray-bubbles/ #NASA #Astrophysics #CosmicRays #FermiGammaRaySpaceTelescope #GalaxiesStarsBlackHolesResearch #GammaRays #GoddardSpaceFlightCenter #ScienceResearch #StarClusters #Stars #TheMilkyWay #TheUniverse

🔮✨ Cosmic rays + #supernova = planetary spa day! 🎉 Too bad you'd need a PhD and 14 browser extensions just to read this cosmic fairy tale. 🚀🔍
https://www.science.org/doi/10.1126/sciadv.adx7892 #CosmicRays #SpaceScience #Astrophysics #HackerNews #SciFi #HackerNews #ngated

The mysterious black fungus from Chernobyl that may eat radiation.

Mould found at the site of the Chernobyl nuclear disaster appears to be feeding off the radiation.

Could we use it to shield space travellers from cosmic rays?

https://mediafaro.org/article/20251128-the-mysterious-black-fungus-from-chernobyl-that-may-eat-radiation?mf_channel=mastodon&action=forward

#Chernobyl #Radiation #Fungus #Mould #Space #CosmicRays #Ukraine #SpaceTravel #Science

3I/ATLAS: Scientists Warn 'Deadly Cosmic Rays' 'Destroyed' Comet's 'True Self'
https://atlas.whatip.xyz/post.php?slug=3iatlas-scientists-warn-deadly-cosmic-rays-destroyed-comets-true-self
"Unveiling the Cosmic Drama: How Deadly Rays Transformed Comet 3I/ATLAS!"
#space #astronomy #cosmicrays #cometresearch

The 220 PeV February 2023 neutrino might be from a #PrimordialBlackHole that evaporated, suggesting support for #PBH es as #DarkMatter [1][2][3].

Alexandra P. Klipfel, David I. Kaiser, 2025, PRL, 35, 121003, "Ultra-High-Energy Neutrinos from Primordial Black Holes"

@cosmology #ArXiv_2503_19227 #CosmicRays #cosmology

[1] https://arXiv.org/abs/2503.19227

[2] https://ui.adsabs.harvard.edu/abs/2025PhRvL.135l1003K

[3] https://www.sciencealert.com/powerful-particle-detection-could-mean-weve-already-found-an-exploding-black-hole

How to use the #SKA to observe air shower radio emission and figure out where the #CosmicRays actually come from. #ag2025goerlitz

Learn about "#Astronomy without Light" from the official recording of my keynote at the 2025 #Stellafane Convention!

https://youtube.com/watch?v=wBdbYmXwjFs&si=GurgypOvkU7s8i2a

#physics #astrophysics #neutrinos #cosmicrays #darkmatter

Enter the Radiolytic Habitable Zone, where high-energy particles from space, known as cosmic rays, could create the energy needed to support life underground on planets and moons in our solar system. 🧪🔭

☑️ https://nyuad.nyu.edu/en/news/latest-news/science-and-technology/2025/july/research-suggests-potential-for-life-beneath-surface-mars.html
☑️ https://www.cambridge.org/core/journals/international-journal-of-astrobiology/article/estimating-the-potential-of-ionizing-radiationinduced-radiolysis-for-microbial-metabolism-on-terrestrial-planets-and-satellites-with-rarefied-atmospheres/187F317A3974A2008227C707538785E9

#Astrobiology #Life #Mars #Enceladus #Europa #Mars #science #news #cosmicrays #RHZ

Could Space Radiation Mutate Seeds For The Benefit of Humanity? - Humans have forever been using all manner of techniques to better secure the food ... - https://hackaday.com/2025/07/08/could-space-radiation-mutate-seeds-for-the-benefit-of-humanity/ #spacemutagenesis #hackadaycolumns #cosmicradiation #agriculture #mutagenesis #cosmicrays #radiation #science #iaea

Let me share one of the pictures from todays #physics data analyis work.

It is a Dalitz plot visualizing the fractions of the signals in three photodiodes registering scintillation light excited by #cosmicrays #muons in a big Bismuth-Germanium-Oxide #BGO crystal. The colors represent different data selection criteria.

Space Weather

As this week's major geomagnetic storm subsides, the Forbush Decrease (reduction in galactic cosmic rays caused by the CME bow-shock) is still having an effect as it spreads out into the solar system.

The Oulu neutron monitor is still registering a rate around 10% lower than the background rate over the last month.

#spaceweather
#forbush
#cosmicrays

@waldoj

Spinning Rust is better than NAND Flash.

#Permeance #CosmicRays

@heatsink

Just another reason not to travel on planes.

I knew someone (a travel agent) that flew extensively. Sure enough, he died of cancer.

You are going to be exposed to more Cosmic Rays when flying than will hit you when you stay on the ground.

#CosmicRays #Physics #Mutations