Tag Archives: Astrophysics

Counting All the Antistars in the Sky

Posted on April 22, 2021 by rberkowitz

Analyzing gamma-ray sources leads to an upper limit on how many antimatter stars could exist in the Milky Way. Read more in APS Physics…

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A galactic fast radio burst finally reveals its origin

Posted on January 1, 2021 by rberkowitz

Observations at multiple wavelengths provide compelling evidence that the first example of a fast radio burst detected in our galaxy came from a magnetized neutron star. Continue reading →

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A fast radio burst finally reveals its origins

Posted on December 8, 2020 by rberkowitz

Observations at multiple wavelengths provide compelling evidence that the first burst detected in our galaxy came from a magnetized neutron star. Continue reading →

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Nobel Prize in Physics honors the discovery of a supermassive compact object at the heart of the Milky Way

Posted on December 1, 2020 by rberkowitz

By tracking the orbits of stars close to the galactic center, Reinhard Genzel and Andrea Ghez ruled out all possibilities besides a black hole. Continue reading →

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Ion Recoil from Photon Beam Observed

Posted on June 22, 2020 by rberkowitz

Experiments confirm that photonionized molecules get a backward kick, as predicted by theory.  Continue reading →

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Three Helium-Ammonia Compounds Found for Icy Planets

Posted on April 10, 2020 by rberkowitz

Stable compounds made from helium and ammonia are predicted to form at the extreme pressures found inside Neptune and Uranus.  Continue reading →

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Rare nuclear transition provides evidence for stellar explosion mechanism

Posted on March 2, 2020 by rberkowitz

With its higher-than-expected propensity to capture electrons, neon could drive some stars’ thermonuclear death.  Continue reading →

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Rare nuclear transition provides evidence for supernova mechanism

Posted on January 31, 2020 by rberkowitz

With its higher-than-expected propensity to capture electrons, neon could drive some stars’ thermonuclear death. Continue reading →

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Mapping the Remains of Supernovae

Posted on December 18, 2019 by rberkowitz

A new tool provides detailed, 3-D chemical view of exploded star systems. Continue reading →

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Physical cosmology wins a share of the Nobel Prize in Physics

Posted on December 1, 2019 by rberkowitz

James Peebles developed a mathematical framework that describes how the universe evolved. Decades of empirical evidence later, it still holds up. Continue reading →

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