2 monster black holes are headed toward a collision that will rock the fabric of space-time

The two black holes are designated PKS 2131-021 are spiraling towards each other. PKS 2131-021 is a “blazar,” a major source of a relativistic jet. The average distance between the two is about 50 times the distance from the Sun to Pluto… but the combined mass of billions of times that of the Sun means that the orbital period is about two years. When the two coalesce into a single black hole, the gravitational waves will resound across the universe. Should be a hell of a show.

Two problems:

1) This will happen in about 10,000 years.

2) It’s about 9 billion light years away.

Bah.