[political-research] Re: Bloglines - The Universe is Trapped in its Own Web

Seems I have read this before, quite some time ago. But here is it again:

http://www.cbc.ca/story/science/national/2006/04/06/black-holes-20060406.html

Astronomers find black holes spiralling together
Last Updated Thu, 06 Apr 2006 13:14:54 EDT
CBC News

Astronomers have found a pair of giant black holes that are moving
together and could eventually merge into a single super-massive black
hole.

Scientists had already observed the two black holes using radio
telescopes, but new data from NASA's Chandra X-ray Observatory show
how the two are bound by gravity and orbiting around each other.

The X-ray data show that the two black holes are moving at about 1200
kilometres per second. As they move through interstellar gas, they
emit jets of plasma that are bent back behind them.

Craig Sarazin, an astronomer at the University of Virginia, compares
the jets to contrails produced by airplanes. By observing radiation
from the jets, the researchers found that they are bent together and
intertwined, showing that the two blacks holes are orbiting each other.

Sarazin, Daniel Hudson and Thomas Reiprich of the University of Bonn,
and Tracy Clarke of the U.S. Naval Researcher Laboratory co-authored
the study, which was published in Thursday's issue of the journal
Astronomy & Astrophysics.

A black hole is a concentration of mass so great that not even light
can escape its gravitational pull. They are formed when a star
collapses under its own mass. Super-massive black holes are believed
to exist at the centres of most galaxies.

Astronomers have theorized that coupled black holes exist, and that
they can merge into even larger black holes. The new observations give
more evidence that this actually happens.

Each of the two black holes is at the centre of its host galaxy and
those galaxies are merging. As well, the galaxy cluster where the two
galaxies are found, Abell 400, is merging with a neighbouring cluster.

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