1,500 supernovas offer most precise survey of dark energy and dark matter to date
Two decades' worth of observations of supernova explosions and a powerful new analysis tool has provided the most accurate accounting of dark energy and dark matter to date.
![1,500 supernovas offer most precise survey of dark energy and dark matter to date](http://cdn.mos.cms.futurecdn.net/YFv5rSBaM4gieEeJt9Fby3.jpg?#)