Dark matter made out of axions may have the power to make space-time ring like a bell, but only if it is able to steal energy from black holes, according to new research.

The nature of dark matter has puzzled astronomers since discovering that 85% of the universe's matter is invisible through our telescopes.

The big cosmic joke of dark matter is that, although we can’t see it, it apparently makes up the vast majority of all the matter in the universe. We literally can’t see the forest for the trees. We’re also not sure when and where it came from.