Following the disappointing results from other candidates for explaining dark matter, a particle hypothesised over 40 years ago, the axion, has come back to the forefront.
Two separate measurements of the Hubble constant, a parameter that describes the expansion rate of the Universe, have yielded conflicting results. The discrepancy could lead to the overthrow of the...
Although its existence has been suspected for more than seventy years, the hunt for dark matter continues, as physicists around the world attempt to track it down. Or are they all just chasing an...