Read article 'ESA mission will study ultimate energies'
Joining the Pierre Auger Observatory in the long term will be ESA's Extreme Universe Space Observatory, which is scheduled to fly on the International Space Station from 2008.
Read article 'Milky Way reveals new information about the density of baryonic matter in the universe'
Ordinary matter composed of baryons - essentially protons and neutrons - is responsible for only a tenth of the gravitation observed in the universe.
Read article 'Cosmic Rays at Earth'
Lawrence Jones reviews in 2002 Cosmic Rays at Earth.
Read article 'X-rays come under the spotlight'
In 1999 two new X-ray satellites were launched – Chandra and XMM-Newton. Here we mark a few of their discoveries and show some of the X-ray images that are now available to astronomers. For the ...
Read article 'Non-X-ray news: UK is set to join ESO'
On 1 July the UK will become the tenth member state of the European Southern Observatory (ESO). The other member states are Belgium, Denmark, France, Germany, Italy, the Netherlands, Portugal, Sweden ...
Read article 'Astronomers celebrate sight of two million year old ‘baby’'
A very small, faint galaxy more than 13.4 billion light-years from Earth is creating a great deal of excitement among astronomers. This protogalaxy, which is just 500 light-years across (a two-hundred...
Read article 'Noisy stars give good vibrations'
Sound waves running through a star can help astronomers to reveal its inner properties. Alpha Centauri A is the nearest star visible to the naked eye, at a distance of a little more than four light-ye...
Read article 'Arctic Circle maintains the freshness of ancient physics'
A recent meeting underlined the continual freshness of studying the ancient history of the universe.
Read article 'Observers decipher more primordial helium to unravel the history of the early universe'
Observations of helium give new clues as to how matter evolved in the early universe. The primordial helium gas left over from the Big Bang is spread thinly through space between galaxies. NASA’...
Read article 'Astroparticle physicists gain increased support'
Understanding what happens in the largest objects of the universe in terms of interactions between the smallest particles of matter might seem a tall order, but funding agencies see that, as well ...
