NEWSALERT: Saturday, December 13, 2003 @ 2327 GMT --------------------------------------------------------------------- The latest news from Astronomy Now and Spaceflight Now
HAS XMM-NEWTON CAST DOUBT OVER DARK ENERGY? ------------------------------------------- In a survey of distant clusters of galaxies, European Space Agency's XMM-Newton observatory has found puzzling differences between today's clusters of galaxies and those present in the Universe around seven thousand million years ago.
Alain Blanchard of the Laboratoire d'Astrophysique de l'Observatoire Midi-Pyrenees and his team use the results to calculate how the abundance of galaxy clusters changes with time. Blanchard, knowing that this conclusion will be highly controversial, said: "To account for these results you have to have a lot of matter in the Universe and that leaves little room for dark energy."
http://spaceflightnow.com/news/n0312/12darkenergy/
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