The suspect right now is dark matter.
Two such holes found. But couldn't find any info on dia or size.
https://www.zmescience.com/science/cosmic-bullet-holes-galaxy-05343/
The suspect right now is dark matter.
Two such holes found. But couldn't find any info on dia or size.
https://www.zmescience.com/science/cosmic-bullet-holes-galaxy-05343/