The world is finally about to see a black hole — not an artist’s impression or a computer-generated likeness, but the real thing. Of all the forces in the Universe that we cannot see — including dark energy and dark matter — none has frustrated human curiosity as thoroughly as the invisible, star-devouring monsters known as black holes. “Over the years, we accumulated indirect observational evidence,” said Paul McNamara, an astrophysicist at the European Space Agency and project scientist for the LISA mission that will track massive black hole mergers from space.
