What’s the average density of the universe? One look out at the night sky will confirm that space isn’t a dense place — but still, its actual density could affect everything from the way it’s shaped ...

A common question arises: can density be determined using the free space measured on a gas adsorption analyzer, rather than a device specifically designed for density measurement? This article ...

THE accurate measurement of crystal density has recently acquired increased importance, since it is necessary to know this quantity in order to use X-ray methods for determining the molecular weights ...

A planetary scientist has used careful mathematical calculations to determine the density of Mercury's crust, which is thinner than anyone thought. Mercury is small, fast and close to the sun, making ...