Tag Archives: Cosmology

An Extraordinary CosmicAlignment

Posted on October 14, 2024 by rberkowitz

A rare configuration of seven galaxies aligned behind a galaxy cluster allows researchers to probe with high precision the dark matter distribution within the cluster. Continue reading →

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Meet HELIX, the High-Altitude Balloon That May Solve a Deep Cosmic Mystery

Posted on May 8, 2024 by rberkowitz

Every now and then, tiny particles of antimatter strike Earth from cosmic parts unknown. A new balloon-borne experiment launching this spring may at last find their source. Continue reading →

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Dark Matter Could Cause Excess Optical Background

Posted on November 30, 2022 by rberkowitz

Axions that decay into photons could account for visible light that exceeds what’s expected to come from all known galaxies. Continue reading →

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Axion Miniclusters Might Be Microlenses

Posted on November 16, 2022 by rberkowitz

Asteroid-sized clumps of a dark matter candidate known as an axion could be detectable in a gravitational-microlensing survey. Read more in APS Physics…

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Expanding Universe in the Lab

Posted on November 16, 2022 by rberkowitz

Researchers control the speed of sound in an ultracold gas, mimicking features of a curved spacetime and reproducing quantum field behavior predicted in early Universe models. Continue reading →

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New telescopes seek the cosmic dark ages

Posted on September 1, 2022 by rberkowitz

Radio astronomers look to far-flung locations to detect low-frequency signals that emanate from the ancient universe. 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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Experiments support theory of cosmic magnetic field growth

Posted on February 23, 2018 by rberkowitz

A turbulent, laser-generated plasma can dramatically amplify magnetic fields. Continue reading →

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