In recent times, cosmologists have given increased attention to the concept of dark matter
. However, some new findings about dwarf galaxies have introduced conflicting evidence into the debate.
From the article:
Leading cosmologist Carlos Frenk spoke of the "disturbing" developments at the British Science Festival in Bradford.
The current theory holds that around 4% of the Universe is made up of normal matter - the stuff of stars, planets and people - and around 21% of it is dark matter.