Only a small part of the universe consists of visible matter. By far the largest part is invisible and consists of dark matter and dark energy. Very little is known about dark energy, but there are many theories and experiments ...
General Physics
Aug 8, 2017
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The "strong force" plays a crucial role for the existence of matter in the visible universe. Scientists at TU Darmstadt are carrying out research in that field and recently published their results in Physical Review Letters. ...
General Physics
Jun 2, 2017
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Near the edge of the visible Universe are some of the brightest objects ever observed, known as quasars, which are believed to contain supermassive black holes of more than a billion times the mass of our Sun. Simulations ...
Astronomy
Mar 30, 2016
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Within modern cosmology, the Big Bang marks the beginning of the universe and the creation of matter, space and time about 13.8 billion years ago. Since then, the visible structures of the cosmos have developed: billions ...
Astronomy
Oct 21, 2015
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Astrophysicists have created a 3D map of the universe that spans nearly two billion light years and is the most complete picture of our cosmic neighbourhood to date.
Astronomy
Apr 27, 2015
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When particles collide inside Brookhaven Lab's Relativistic Heavy Ion Collider (RHIC), they melt at trillion-degree temperatures and form a friction-free "perfect" liquid. This quark-gluon plasma, composed of the liberated ...
General Physics
Nov 10, 2014
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Last Saturday, about 230 high-energy physicists of various stripes wrapped up a week of talks on all aspects of the field at the XXVI International Symposium on Lepton Photon Interactions at High Energies – known among ...
General Physics
Jul 4, 2013
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(Phys.org) —An international team of researchers, including University of Hawaii at Manoa astronomer Brent Tully, has mapped the motions of structures of the nearby universe in greater detail than ever before. The maps ...
Astronomy
Jun 12, 2013
169
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(Phys.org) —A team of Harvard University physicists has proposed the possible existence of a type of dark matter not described by current physics models. In their paper published in the journal Physical Review Letters, ...
A successful measurement of the distribution of quarks that make up protons conducted at DOE's Jefferson Lab has found that a quark's spin can predict its general location inside the proton. Quarks with spin pointed in the ...
General Physics
Apr 2, 2013
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