Supermassive cosmic merger

Take a look at today's Astronomy Picture of the Day (photo on the left). These two black holes collision is extremely dangerous because it will create a super-supermassive black hole capable of swallowing material equal to "billions of stars". According to the report back in 2002, BBC predicted:

The black holes are orbiting each other and will collide and merge to create an even larger black hole - resulting in a catastrophic event that will unleash intense radiation and gravitational waves.[...]

Over the course of the next few hundred million years, the two black holes in NGC 6240, which are about 3,000 light-years apart, will drift towards one another and merge to form an even larger supermassive black hole.

Towards the end of this process, an enormous burst of gravitational waves.

We are doomed! We'll be eaten up by a super massive blackhole!