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Tag Archives: Big Bang
Climate change consensus: An open letter from 255 Scientists
Sometimes…often…many of the scientific rebuttals to climate change deniers amount to pep-talking the base (an Americanism for rallying those who are already loyal to the cause). Well, sometimes the base needs a good pep-talk. Like now, when the voices of global warming denialism are being orchestrated into a general anti-science chorus. That’s what 255 members [...]
Posted in Spun Also tagged anti-science, climate change, evolution, global warming, science, scientific method, theory Comments closed
Looking at the strange face of antimatter
Scarcely three weeks ago, it was reported that the Relativistic Heavy Ion Collider (RHIC) at the Brookhaven National Laboratory had achieved the all time (laboratory) high temperature record of 4 trillion degrees Centigrade. [SciTechStory: Taking the temperature of the Big Bang + milliseconds] The significance was that in colliding atoms of gold and producing such [...]
Posted in News: Nuclear Physics Also tagged anti-nucleus, anti-strange quark, antimatter, neutron, nuclear physics, proton, quark, RHIC, strange quarks Leave a comment
Taking the temperature of the Big Bang + milliseconds
At the right temperature protons and neutrons ‘melt’ to become a plasma of their constituent particles: quarks and gluons. New experiments at the Relativistic Heavy Ion Collider (RHIC), at the U.S. Department of Energy’s (DOE) Brookhaven National Laboratory have now determined that the temperature at which quark-gluon plasma (QGP) forms is approximately 4 trillion degrees [...]
Posted in News: Nuclear Physics Also tagged gluons, gold-gold collisions, nucleus, photons, protons, quarks, RHIC Leave a comment
Dark matter missing after supernova blasts
Why aren’t there enough stars and dark matter in the galaxies we observe (particularly the many dwarf galaxies)? Good question. It’s been bothering cosmologists for decades. It bothers physicists too; they can’t see or measure dark matter, since whatever it is, it doesn’t affect the usual electromagnetic suspects. Yet dark matter is thought to account [...]
Posted in News: Cosmology Also tagged cosmology, dark matter, dwarf galaxies, gravity, supernova Leave a comment
Hubble on the bubble
What do you call it when the best of what you’ve got now really makes you want the better thing that’s coming? Technological progress. This seem to be the case with the Hubble Space Telescope, which after its latest retrofitting is beginning to produce new and better results. Just now the various Hubble teams are [...]
Posted in News: Scientific Instruments Also tagged cosmology, galaxies, Hubble, James Webb, scientific instruments, space telescope Leave a comment
Formation of super black holes – a new model
As astronomers and cosmologists attempt to piece together the formation of the universe, some of the pieces are truly immense. For example, supermassive black holes, which are believed to be associated with nearly every large galaxy, are billions of times larger than the sun. A new model connects the supermassive black holes to equally massive [...]
New (and important) evidence for dark matter/energy
What better place to contemplate the mysteries of the cosmos, mysteries such as dark matter, than at the South Pole in the dead dark of winter at temperatures seldom above -40C. Members of the QUaD (QUEST at DASI) research team patiently collected data, and then spent months (running into years) of collation and interpretation. Their [...]
Posted in News: Dark Matters Also tagged background radiation, CMB, cosmology, dark energy, dark matter, standard cosmological model Leave a comment
Trapping antimatter so it finally can be studied