A team of scientists has developed a recipe for black holes that eliminates one of the most troubling aspects of physics: the central singularity, the point at which all our theories, laws and models shatter.

If you were going to design an object to preserve mystery while being utterly troubling, you couldn't do much better than a black hole.

First, the outer boundary of these cosmic titans is a one-way light-trapping surface called an event horizon, the point at which a black hole's gravity is so powerful that not even light can escape. This means no information can escape from within a black hole, so we can never directly observe or measure what lies at its heart.