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.
Read article 'The race to observe gamma-ray bursts'
After the precise localization of a new gamma-ray burst, several institutes try to obtain an image of its optical counterpart as quickly as possible.
Read article 'Neutrinos: universal messengers at all scales'
The beautiful interior of the San Vidal church in Venice was the setting for a workshop on neutrino telescopes, which looked at the many messages neutrinos carry.
Read article 'Neutrinos limit role of CNO cycle'
The Sun burns through various nuclear reactions with the same net effect - the fusion of four protons to form a nucleus of helium, with the release of energy.
Read article 'Universe may end in a Big Rip'
“Some say the world will end in fire, Some say in ice” wrote the poet Robert Frost in 1916. A third, even more fantastic possibility for the death of the universe has just been proposed. T...
