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Archivio mensile: Aprile 2014

GRB 121024A, observed an unusual gamma-ray afterglow

Research from an international team of scientists led by the University of Leicester has discovered for the first time that one of the most powerful events in our Universe, Gamma-Ray Bursts (GRB), behave differently than previously thought. The study, published in the prestigious scientific journal Nature, uses evidence from observation of a GRB to rule out most…

An hypervelocity star cluster 'escaping' from M87

The galaxy known as M87 has a fastball that would be the envy of any baseball pitcher. It has thrown an entire star cluster toward us at more than two million miles per hour. The newly discovered cluster, which astronomers named HVGC-1, is now on a fast journey to nowhere. Its fate: to drift through…

Discovered an unusual dynamics of two young galaxies

New Herschel Space Observatory findings have given scientists a remarkable insight into the internal dynamics of two young galaxies. Surprisingly, they have shown that just a few billion years after the Big Bang, some galaxies were rotating in a mature way, seemingly having completed the accumulation of their gas reservoirs. More at ASU: ASU researchers find…

Validating the uncertainty principle

Nearly 90 years after Werner Heisenberg pioneered his uncertainty principle, a group of researchers from three countries has provided substantial new insight into this fundamental tenet of quantum physics with the first rigorous formulation supporting the uncertainty principle as Heisenberg envisioned it. More at AIP: Proving Uncertainty: New Insight into Old Problem arXiv: Measurement uncertainty relations

Max Tegmark 'welcomes' the multiverse idea

What is the Universe made of? The ancient Greeks conceived of the “atom”, the indivisible unit of matter. Today’s physicists talk of smaller particles, quarks and electrons, neutrinos, Higgs Bosons and photons. Understand them, and the forces that hold everything together, and we may finally get a handle on what makes it all tick. The trouble…