EurekAlert! Fig. 1. Schematic illustration. When an ultra-relativistic electron beam is incident into nonuniform plasma with an upramp density profile, the beam excites a nonlinear plasma wake, and strong beam pinching occurs due to the focusing wakefields. The focused dense beam,…
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The study was conducted by Shyam Menon of the Flatiron Institute and Aaron Smith of the University of Texas at Dallas and published in the scientific journal The Astrophysical Journal. The researchers used computer models to investigate the idea that…
By Meredith Woodward King The Event Horizon Telescope research collaboration captured the first images of supermassive black holes within the last seven years. But scientists have been trying to unlock the mathematical mysteries behind black holes since Albert Einstein published…
Light from young stars may have helped make some of the universe’s earliest galaxies surprisingly easy to see. New calculations suggest that powerful ultraviolet radiation could push away surrounding gas and dust, opening clearer views of the stars inside. The…
We all know what a bridge is, right? It gets you from Point A to Point B by crossing over something that could pose as an obstacle. Reading this, you might be thinking, what’s so interesting about a bridge? I…
Newswise — A University of Portsmouth researcher has played a major role in an international research project that brings scientists closer to mapping the Universe. The MeerKLASS Collaboration has reported their first measurement of the large-scale clustering of cosmic hydrogen, advancing…
A previously unrecognized theoretical phenomenon involving gravity fields could help researchers better predict the behavior of space-time, building on the work of famed physicist Albert Einstein. New research from Columbia University and Chile’s Universidad Adolfo Ibáñez, published in Physical Review…
Only a few hundred million years after the Big Bang, during the Cosmic Dawn, bright galaxies populated the Universe in numbers higher than expected. The JWST showed that these galaxies formed very dense, compact clusters of stars. Why their star…
In the first fraction of a second following the Big Bang, matter existed as a trillion-degree plasma of quarks and gluons - subatomic particles that zinged around at close to the speed of light. This roiling soup lasted for just a…
Black holes, dark matter, gravitational waves, and the big‑picture universe.
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