Read article 'Fermi gamma-rays match dark-matter signal'
A new analysis of observations of the galactic centre by the Fermi Gamma-ray Space Telescope strengthens the case for a signal from annihilating dark matter. The authors claim that the excess emission...
Read article 'Record-setting GRB challenges theories'
The very bright, relatively nearby gamma-ray burst (GRB) of 27 April 2013 – GRB 130427A – offers astronomers the most complete set of observational data of this phenomenon to date. Wh...
Read article 'Black-hole jets contain heavy nuclei'
One of the open questions of astrophysics is the composition of the powerful jets launched by black holes. Are the jets purely leptonic or do they also contain protons and nuclei? The latter are impli...
Read article 'Light echoes reveal black hole’s violent past'
Researchers using NASA’s Chandra X-ray Observatory have found evidence that the normally dim region close to the supermassive black hole at the centre of the Milky Way flared up with at least tw...
Read article 'CLOUD shines new light on aerosol formation in atmosphere'
The CLOUD experiment at CERN, which is studying whether cosmic rays have a climatically significant effect on aerosols and clouds, is also tackling one of the most challenging and long-standing proble...
Read article 'Volatile millisecond pulsar validates theory'
For the first time, astronomers have caught a pulsar in a crucial transitional phase that explains the origin of the mysterious millisecond pulsars. The newly found pulsar swings back and forth betwee...
Read article 'ICRC 2013: from Earth to the Galaxy and beyond'
Reporting on this year’s major astroparticle physics conference.
Read article 'Testing times for relativity'
Albert Einstein’s theory of relativity is one of the most successfully tested ideas in physics. Based on the statement that the laws of physics are invariant under rotations and boosts – of...
Read article 'Hyper Suprime-Cam offers new view on universe'
A stunning image of the nearby Andromeda galaxy (M31) captured by the Subaru Telescope's Hyper Suprime-Cam (HSC) has demonstrated the instrument's capability of fulfilling the goal to use the ground-b...
Read article 'Kilonova solves the short GRB puzzle'
Follow-up observations of a recent short-duration gamma-ray burst (GRB) provide the strongest evidence yet that these elusive bursts result from the merger of two neutron stars. The evidence is in the...
