Read article 'XMM-Newton sees fast-spinning white dwarf'
Using observations by ESA’s Newton X-ray multimirror satellite, XMM-Newton, a group of Italian astronomers has derived the characteristics of a peculiar binary system consisting of a white dwarf...
Read article 'Cosmology'
Massimo Giovannini reviews in 2015 Cosmology by Steven Weinberg.
Read article 'Telescopes pin down location of cosmic accelerator'
Teams have joined forces with astronomers to reveal the precise location of particle acceleration in the nearby giant radio galaxy M87.
Read article 'Galactic positrons are not from dark matter'
A new study on the propagation of positrons in the galaxy suggests that dark-matter annihilation or decay is not required to account for gamma-ray observations by ESA’s INTEGRAL satellite. It sh...
Read article 'Cosmic leptons challenge dark-matter detection'
Recent data favour an astrophysical explanation for cosmic-ray features.
Read article 'Playing with Planets'
Herbi Dreiner reviews in 2009 Playing with Planets.
Read article 'The ESA Planck spacecraft heads off to its final destination after successful launch'
Planck, ESA's new spacecraft to map the cosmic microwave background, successfully took its first steps into space on 14 May when it was launched together with the far-infrared space telescope Hersche...
Read article 'XMM-Newton observes emission from matter around a black hole'
A recent observation by the XMM-Newton satellite revealed two prominent emission lines in the X-ray spectrum of the Seyfert galaxy 1H 0707-495.
Read article 'Fermi measures the spectrum of cosmic-ray electrons and positrons'
The Fermi Gamma-Ray Telescope can find out about more than gamma rays. It has now provided the most accurate measurement of the spectrum of cosmic-ray electrons and positrons. These results are consis...
Read article 'Cosmology’s golden age'
Nobel laureate George Smoot looks at exciting times now and to come in cosmology.
