Huge cosmic voids, giant empty regions of the universe which take up space around galaxies, might not be as empty as previously thought, scientists have claimed.
In fact, these voids could contain as much as 20 per cent of the 'normal' matter in the universe, according to a team of astronomers from the University of Innsbruck in Austria.
The scientists believe that this wandering matter was spat out into the void by supermassive black holes in the centre of galaxies.
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