Astronomers find half of the missing matter in the universe

Scientists produce indirect evidence of gaseous filaments and sheets known as Whims linking clusters of galaxies in the cosmic web

It is one of cosmology's more perplexing problems: that up to 90% of the ordinary matter in the universe appears to have gone missing.

Now astronomers have detected about half of this missing content for the first time, in a discovery that could resolve a long-standing paradox.