Science
‘WTF?’: newly discovered ghostly circles in the sky can’t be explained by current theories, and astronomers are excited – The Conversation AU
When astronomers started using the new ASKAP radio telescope, they discovered mysterious circular blobs of unknown size and distance in the sky.
In September 2019, my colleague Anna Kapinska gave a presentation showing interesting objects shed found while browsing our new radio astronomical data. She had started noticing very weird shapes she couldnt fit easily to any known type of object.
Among them, labelled by Anna as WTF?, was a picture of a ghostly circle of radio emission, hanging out in space like a cosmic smoke-ring. None of us had ever seen anything like it before, and we had no idea what it was. A few days later, our colleague…
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