For decades it was baffling. Out of the still night sky, astronomers peering through their telescopes would occasionally glimpse quick bursts of high-energy light popping off like flashbulbs at the far side of the universe.
These bursts seemed impossibly powerful: to appear so bright from so very far away, they must vastly outshine entire galaxies containing [...]

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After making the country’s first spacewalk, three Chinese astronauts returned safely to Earth on Sunday. They landed in northern China’s Inner Mongolia region.
Mission commander Zhai Zhigang, 41, was watched on television by countless millions around the globe as his 15-minute spacewalk vaulted China into ranks of the United States and the former Soviet Union as the [...]

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This week a paper puplished arxiv titled :Gravitational fields as generalized string models
We show that Einstein’s main equations for stationary axisymmetric fields in vacuum are equivalent to the motion equations for bosonic strings moving on a special nonflat background. This new representation is based on the analysis of generalized harmonic maps in which the metric [...]

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I have just gone through the press release from CERN. They said that investigations at CERN following a large helium leak into sector 3-4 of the Large Hadron Collider (LHC) tunnel have indicated that the most likely cause of the incident was a faulty electrical connection between two of the accelerator’s magnets. Before a full [...]

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Today is 10th september,2008 and LHC has started up. Beam is in the LHC now. So CERN is really hot. Two blogs have started live bloging to keep us updated - Cosmic Variance and symmetry breaking . You can also get updates in the blog of  Tommaso Dorigo. Here is the plan for tomorrow . Best of luck for LHC.

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According to Loop quantum gravity (LQG), loops are the quantum excitations of the gravitational
field and they are space. Because there is no background space. Only loops over loops and these loops intersect each other just like a net. Interesting fact is that, the points at which loops intersect, i mean at the nodes “quanta of [...]

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Today String 2008 is going to start at CERN. This conferense will end on 23rd of this month. Last year it was held in Madrid, Spain. This conference is the largest and most important one on String Theory. Almost 400 physicists are participating. Here is the scheduale. CERN will provide live webcast . Lubos Motl [...]

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The Big Bang theory predicts that the early universe was a very hot place and that as it expands, the gas within it cools. Thus the universe should be filled with radiation that is literally the remnant heat left over from the Big Bang, called the “cosmic microwave background radiation”, or CMB.
In 1965, two young [...]

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Gravitational wave is a prediction of Einstein’s General Relativity . Gravitational waves are disturbance in curvature of space-time caused by the motions of matter and they propagate as a wave, traveling outward from a moving object or system of objects. Important examples of systems which emit gravitational waves are binary star systems, where the two [...]

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I have just visited Guardian’s Particle Physics section and found that they have really made a nice flash presentation of Cern’s Large Hadron Collider( LHC ) . Yes.. that Large Hadron Collider for which physicists are waiting for a long time and after 20 years of preparation it is ready to switch. This is [...]

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