Read article 'Auger ready for ultra-high-energy cosmic rays'
With the completion of its 100th surface detector at the end of October, the Pierre Auger Observatory became the largest cosmic-ray air-shower array in the world.
Read article 'INTEGRAL discovers hidden black holes'
INTEGRAL, the powerful gamma-ray space telescope, has discovered what seems to be a new class of astronomical objects. These are binary systems, probably including a black hole or a neutron star, embe...
Read article 'Physics from heaven and Earth'
The International Europhysics Conference on High Energy Physics of the European Physical Society (HEP-EPS) provided a superb synergy between physics, history and music, as Felicitas Pauss reports.
Read article 'Evidence for spinning black holes in our galaxy'
Do all black holes spin? How fast do they spin? The most detailed studies of stellar black holes to date by NASA’s Chandra X-ray Observatory and the European Space Agency’s XMM-Newton sate...
Read article 'Looking back to the cosmic renaissance'
Six of the most distant galaxies ever seen have been discovered in a small area of the sky less than five per cent the size of the full Moon. Located approximately 12,600 million light-years away, we ...
Read article 'Modern Cosmology and Particle Astrophysics'
Paul H Frampton reviews in 2003 Modern Cosmology by Scott Dodelson and Particle Astrophysics by Donald Perkins.
Read article 'Laser spectroscopy tests for inconstant constants'
Recent astrophysical measurements of distant quasar spectra indicate that the fundamental constants may be changing with time.
Read article 'Gamma-ray burst supports hypernova hypothesis'
After decades of speculation on the nature of gamma-ray bursts (GRBs), the very bright event known as GRB030329 is finally unveiling their origin.
Read article 'Hot gas reveals cold dark matter'
The long controversy between cold-dark-matter and hot-dark-matter models is rapidly nearing an end. A recent study of the X-ray emission of hot gas in a massive cluster of galaxies has allowed astrono...
Read article 'Gamma-ray bursts made by supernovae'
The discovery of the supernova SN2003dh at the location of the Gamma-ray burst GRB030329 enlightens the search for the origin of GRBs.
