No matter how hard you try to push their boundaries, black
holes always seem to preserve their modesty. Indiscreet astrophysicists have simulated
the most violent collisions of black holes yet, and found that the resulting black
hole still has an event horizon — the surface through which even light cannot
escape and that hide black holes’ interiors.
An international team of researchers created a computer
simulation of what they call the most violent collision imaginable: Two black
holes of equal masses smashing into each other head-on, moving at close to the
speed of light.