NASA's Chandra X-ray telescope sees 'knots' blasting from nearby black hole jets 

 A fresh analysis of decades-old X-ray black hole jet data has revealed bright, lumpy features with mysterious speed changes. 

https://cdn.mos.cms.futurecdn.net/5nvBSLpmDvVo2BgfrSBWkE.jpg

https://www.space.com/the-universe/black-holes/nasas-chandra-x-ray-telescope-sees-knots-blasting-from-nearby-black-hole-jets