article_snippet.sent: Called 'dark matter', this substance appears to make up 85 per cent of the matter in our universe.
article_snippet.sent: When this substance comes to the total energy in our universe, though, it's a different story.
article_snippet.sent: Astronomers have found that the total mass/energy content of our universe is split in the proportions 68 per cent dark energy, 27 per cent dark matter and 5 per cent 'normal' matter.
article_snippet.sent: So the 85 per cent figure above relates only to the fraction of 'matter' that is dark.