"Scanning through data fresh off the telescope, we saw two ghosts dancing deep
in the cosmos. We had never seen anything like it before, and we had no idea
what they were.
Several weeks later, we had figured out we were seeing two radio galaxies,
about a billion light years away. In the centre of each one is a supermassive
black hole, squirting out jets of electrons that are bent into grotesque shapes
by an intergalactic wind.
But where does the intergalactic wind come from? Why is it so tangled? And what
is causing the streams of radio emission? We still don’t understand the details
of what is going on here, and it will probably take many more observations and
modelling before we do.
We are getting used to surprises as we scan the skies in the Evolutionary Map
of the Universe (EMU) project, using CSIRO’s new Australian Square Kilometre
Array Pathfinder (ASKAP), a radio telescope that probes deeper into the
Universe than any other. When you boldly go where no telescope has gone before,
you are likely to make new discoveries."
Share and enjoy,
*** Xanni ***
Chief Scientist, Xanadu
Partner, Glass Wings
Manager, Serious Cybernetics