Astronomers have used a pair of pulsars orbiting
each other, found with CSIRO’s Parkes telescope in 2003, to show that
Einstein’s theory of general relativity is correct to within 0.05% –
the most stringent limit to date. They
also hope to be able to use the two pulsars to determine the exact
nature of the matter that pulsars and other neutron stars are made of.
Particle Acceleration by Stimulated Emission of Radiation (PASER for Short), a sort of particle analog of the laser process, has been demonstrated, for the first time, by a team of physicists from the Technion-Israel Institute of Technology using the accelerator facilities at the Brookhaven National Lab.
Physics and Astronomy 
Astronomers have used a pair of pulsars orbiting
each other, found with CSIRO’s Parkes telescope in 2003, to show that
Einstein’s theory of general relativity is correct to within 0.05% –
the most stringent limit to date. They
also hope to be able to use the two pulsars to determine the exact
nature of the matter that pulsars and other neutron stars are made of.
Particle Acceleration by Stimulated Emission of Radiation (PASER for Short), a sort of particle analog of the laser process, has been demonstrated, for the first time, by a team of physicists from the Technion-Israel Institute of Technology using the accelerator facilities at the Brookhaven National Lab.
