Physics news

Galactic volcanoes

At www.physorg.com/print201424073.html we have an image of a galactic volcano - erupting. Of course, it isn't a real volcano but it is likened to one (see also www.dailygalaxy.com August 21st for a slightly different slant). The image comes from NASAs Chandra X-ray Observatory and happened 50 million light years away - in the centre of the Virgo cluster.

Probing Dark Energy

At www.jpl.nasa.gov/news/ August 19th (NASA newsletter) ... claims astronomers hav e devised a method to measure dark energy - the mysterious force purported to be pushing the universe apart at an ever increasing speed. They homed in on a huge cluster of galaxies at the extreme point of vision of the Hubble Space Telescope and they hope to be able to calculate the speed of energy involved - accurately. In turn, they hope this will eventually lead to an explanation of what dark energy actually is.

Bose-Einstein condensates and superatoms

At http://calderup.wordpress.com August 18th .. Nigel Calder looks at very cold rubidium atoms combining together to make superatoms known as Bose-Einstein condensates. A team in Germany added more rubidium atoms and this brought order and a neater pattern which was probably aided and abetted by reason the superatoms became wider overall.

Boson

At www.physorg.com/print201193905.html a press release from the Pacific NW National Laboratory outlines the current status of Fermilab's search for the Higgs Boson particle. Scientists have now ruled out about a quarter of the Higgs mass rays allowed in earlier experiments in order to narrow it down. It will be a year or so before they can say whether the Higgs Boson particle is fact - or fiction.

'Natural Nucleur Accelerators'

At www.physorg.com/print201279930.html there is a report on a paper in Physcial Review Letters with some interesting discoveries, one of which is that high energy cosmic rays were thought to come from remote galaxies that contained huge black holes capable of eating stars and accelerating protons like a bullet shooting out of a gun barrel. These protons, referred to as cosmic rays, travel through space and eventually enter our galaxy - the theory assumes.

Dark Attractors

At www.dailygalaxy.com August 16th .... 'Dark Attractors Believed to Shape the Universe' is the headline. The science community do not know what invisible or dark matter is but they think they know that it is out there and that without dark matter there would be no galaxies, no stars or planets, no life as we know it.

Supernovae and Amino Acids

A peculiar story is this one, and it was suitably published in Astrobiology as 'Supernovae and the Chirality of the amino acids' (but see www.liebertonline.com/doi/10.1089/ast.2009.0427?utum_source=io9+News but probably the peculiarity is due to the latter rather than the former. It appears to be an attempt to explain left handed amino acids and the virtual exclusion of right handed ones.

Novas emitting huge gamma ray bursts

At www.dailygalaxy.com August 14th ... gamma rays were thought only to come from supernovae but amateur astronomers in Japan have changed that view. They imaged a change in brightness of a small star in the constellation of Cygnus, ten times brighter than it had been a couple of days before, and reported the discovery of a nova event, a short lived brightening of an otherwise inconspicuous star. Novas are thought to occur when a white dwarf in a binary system erupts in an enormous thermo-nucleur explosion.

electron fractionalisation

At www.physorg.com/print200828132.html there is a report on a paper in Physical Review Letters 105, 057201 (2010) concerning the puzzle of electrons as they fractionalise into two separate quasi-particles, spinons and chargons, which carry spin, and charge, respectively, This is known as spin-charge separation and this paper is basically a new theory to explain what happens.

Big Bang

At www.dailygalaxy.com August 11th ... Casey Kazan wonders why the prevailing Big Bang theory predicts all galaxies should be evenly distributed on the outer rims of the initial expanding explosive force, but aren't. Galaxies move in the wrong directions, at different speeds, and collide into one another from every conceivable angle throught the Hubble Length Universe. Hundreds of millions of galaxies appear to clump together forming super clusters while great walls of galaxies are separated by apparently vast voids of empty space.