Many astronomers believe that the universe is dominated by cold 'dark matter' and 'dark energy' - a view that has been confirmed by recent measurements on the cosmic background radiation. Now, however, a group of astrophysicists in the UK has found that this radiation - the microwave 'echo' of the big bang - may in fact have been modified or 'corrupted' as it passed through galaxy clusters on its way to Earth. The result could undermine previous evidence for both dark matter and energy (Monthly Notices of the Royal Astronomical Society 347 L67; arxiv.org/abs/astro-ph/0306180)
Interesting article found on Physics Web:
physicsweb.org/article/news/8/2/4
  