Read article 'Remnants reveal origins of cosmic rays'
In the 90 years since the discovery of cosmic rays, there have been many theories about their origin, but little experimental evidence for actual sources.
Read article 'Debate sparked on quark stars'
Recent observations of two neutron stars have led to the announcement that a new form of matter might have been found. Astronomers using NASA’s Chandra X-ray observatory claim that one of the st...
Read article 'Major upgrade prepares wizard telescopes for a good spell'
The UK’s 217 km MERLIN array of radio telescopes is undergoing a major upgrade. The array already has a resolution equivalent to that of the Hubble Space Telescope. But once the £2.4 millio...
Read article 'Symposium links physics disciplines'
Europe's three principal physics research organizations, CERN, ESA and ESO, held a joint symposium in Munich in March. Maurice Jacob gives a glimpse of what proved to be a busy first encounter.
Read article 'Hubble telescope gets a new look'
So many exciting discoveries have been made using the Hubble Space Telescope that it seems much longer than 12 years since its launch. This run is now being extended thanks to a successful servicing m...
Read article 'VLT identifies white dwarfs with record orbiting speeds'
Two white dwarf stars have entered the record books with the fastest orbital period known for any stellar system. It takes just 5 min for these two Earth-sized stars to orbit each other – that&#...
Read article 'Galaxy redefines reionization epoch'
Lyman alpha emission has been detected from a galaxy of redshift z = 6.56. If confirmed, this discovery pushes back the limits of when reionization could have occurred in the early universe. The dista...
Read article 'Helping the AMS experiment to detect antiparticles in space'
Particle physicists involved in the Alpha Magnetic Spectrometer (AMS) experiment are eagerly scanning data recorded during a December 2001 NASA space shuttle mission.
Read article 'The end of the universe may be frozen in time'
The long-term future of extragalactic astronomy could be dark and dreary, according to new theoretical research. Such a prediction might have not have been taken so seriously, had it not originated fr...
Read article 'DESY workshop combines gravity and particle physics'
Gravity and particle physics took centre stage at last year's DESY theory workshop. As chairman of the organizing committee Dieter Lüst reports, there was plenty to talk about.
