“Lost” –Eight-Billion Light Years of the Universe’s Evolution

Black Hole Merger

 

“It’s likely there are another two million gravitational wave events from merging black holes –a pair of merging black holes every 200 seconds and a pair of merging neutron stars every 15 seconds– that scientists are not picking up,” says Rory Smith at OzGrav (ARC Center of Excellence in Gravitational Wave Discovery), about a new method of detection being tested that means that “we may be able to look more than 8 billion light years further than we are currently observing. This will give us a snapshot of what the early universe looked like while providing insights into the evolution of the universe,” adds Smith.

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“A Big Unknown” –New Phenomenon of Repeating ‘Clockwork’ Rhythm of Radio Waves

Neutron Star

 

A new fast radio burst (FRB) appears like clockwork, seeming to follow a mathematical pattern, says Kiyoshi Masui, assistant professor of physics in MIT’s Kavli Institute for Astrophysics and Space Research about a 16-day pattern of fast radio bursts reoccurring consistently over 500 days of observations from an unknown source outside our galaxy, 500 million light years away.

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“The Invisible World of Hidden Sector Particles” –Rethinking Dark Matter

"Hidden Sector Particles" --Rethinking Dark Matter

 

Warning: you are about to enter an invisible world of anisotropic quasiparticles of magnons and phonons as planet Earth moves through the Milky Way’s dark matter halo.

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The Higgs Boson –“Gateway” to the Dark Universe?

Higgs Field

 

The cosmos contains a Higgs field—similar to an electric field—generated by Higgs bosons in the vacuum. Particles interact with the field to gain energy and, through Albert Einstein’s iconic equation, E=mc2, mass.The Standard Model of particle physics, although successful at describing elementary particles and their interactions at low energies, does not include a viable and hotly debated dark-matter particle. The only possible candidates, neutrinos, do not have the right properties to explain the observed dark matter.

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“Before the First Stars” –Primordial Black Holes, Gravity Wells Formed Moments After the Big Bang

Primordial Black Holes

 

Did primordial Black holes –described as “the gates of hell, the end of spacetime, paradoxical, intriguing, frightening” by the Event Horizon Telescope scientists who imaged the now iconic black hole the size of our solar system at the heart of monster elliptical galaxy M87— exist during the cosmic Dark Age following the Big Bang, before the formation of the first stars?

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“Measuring Shadows” –Revising the Expansion Rate of the Cosmos

 

Hubble's Constant

 

“Eventually we reach the utmost limits of our telescopes –there we measure shadows, and we search among the ghostly errors of measurement for landmarks that are scarcely more substantial,” said Edwin Hubble in 1929, creator of Hubble’s law that observed that the further galaxies are, the faster they are moving away from Earth –the “red shift.” Predictions of Hubble’s Constant from the standard cosmological model when applied to new measurements of the cosmic microwave background (CMB)—the leftover radiation from the Big Bang—have produced a value of 67.4, a significant and troubling difference. This difference, which astronomers say is one of the fundamental problems in all of physics, is beyond the experimental errors in the observations.

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