a new, deeper scan of the sky throws up surprises for astronomers
- Written by Ray Norris, Professor, School of Science, Western Sydney University
Jayanne English/EMU/Dark Energy SurveyScanning 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...
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