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Abraham Loeb on Muck Rack

Abraham Loeb

As seen in: Nature, arXiv, JSTOR Daily, MDPI, PNAS, Scientific American, Live Science, Philippine Daily Inquirer, The Astronomical Journal, Physical Review B and
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Articles

Increased and varied radiation during the Sun’s encounters with cold clouds in the last 10 million years - Scientific Reports

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By Merav Opher, Joe Giacalone, Abraham Loeb, Evan P. Economo, Alan Cummings, Jennifer Middleton, Catherine Zucker, Jesse Miller, Maria Hatzaki, Anna Nica
| Nature Verified
Abstract Recent research raises the possibility that 2–3 and 6–7 million years ago, the Sun encountered massive clouds that shrank the heliosphere —the solar cocoon protecting our solar system— exposing Earth to its interstellar environment, in agreement with geological evidence from 60Fe and 244Pu isotopes. Here we show that during such encounters Earth was exposed to increased radiation in the form of high-energy particles.
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[2507.12213] Is the Interstellar Object 3I/ATLAS Alien Technology?

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By Adam Crowl, Abraham Loeb
| arXiv
[Submitted on 16 Jul 2025 ( v1 ), last revised 21 Jul 2025 (this version, v2)] Title:Is the Interstellar Object 3I/ATLAS Alien Technology?
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De nouveaux radiotélescopes pour étudier les âges sombres de l’Univers

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By Abraham Loeb
| Pour la Science Verified
Au cours du siècle dernier, la science est parvenue à une compréhension du cosmos aussi profonde que précise. La théorie générale de la relativité d’Einstein fournit un cadre qui décrit la structure de l’espace-temps aux plus grandes échelles observables, ainsi que l’existence et le comportement d’objets compacts comme les trous noirs et de nouveaux phénomènes tels que les ondes gravitationnelles.
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