Strange radio waves emerge from direction of the galactic centre

https://www.sydney.edu.au/news-opinion/news/2021/10/12/strange-radiowaves-galactic-centre-askap-j173608-2-321635.html

“Looking towards the centre of the Galaxy, we found ASKAP J173608.2-321635, named after its coordinates. This object was unique in that it started out invisible, became bright, faded away and then reappeared. This behaviour was extraordinary.”

After detecting six radio signals from the source over nine months in 2020, the astronomers tried to find the object in visual light. They found nothing.

They turned to the Parkes radio telescope and again failed to detect the source.