Read article: Chandra delights astronomers
The image of G21.5-0.9, a supernova remnant which is 16,000 light years from Earth, shows a bright central source (the neutron star) with bright nebula and surrounded by a much larger diffuse cloud. T...
Inside a pulsar the neutrons are thought to decay into protons and electrons, which are then accelerated by the pulsar’s powerful magnetic field. Since protons and electrons are charged particle...
X-ray observations with Chandra will complement infrared images from the Hubble Space Telescope and higher-energy observations by the Compton Gamma Ray Observatory. Chandra will have a resolution that...
Cosmic rays are particles from outer space that continually bombard the Earth. The nature and origin of cosmic rays with energies below 1015 eV are well understood. However, physicists have no idea of...
Although scientists have known about gamma-ray bursts since 1967, no one has come up with a feasible explanation of why they occur. The explosions may be caused by the collision of super-dense neutron...
All of the other research councils will get increases of at least 3%, with the Medical Research Council receiving a rise of 6.8%. The Engineering and Physical Sciences Research Council (EPSRC) will ge...
There are a number of reasons why GRB980425 is associated with SN1998bw. Both occurred at the same time, at the same location and in the same direction as each other. SN1998bw is also a rare Type Ib/c...
Quasar jets are streams of plasma that travel at near the speed of light from supermassive black holes at the centre of galaxies. The jets appear at radio wavelengths, but can also be detected in the ...
Gilbert Collins and colleagues used the NOVA laser at the Lawrence Livermore National Laboratory in California to carry out the experiments (Science 281 1178). The deuterium was placed in a small copp...
Speculation on the origin of high energy cosmic rays has existed for some time. The best candidates are massive supernova explosions or the decay of superheavy particles near the beginning of the univ...
