NASA X-ray telescope detects biggest ever space explosion: study

Astronomers observed the largest cosmic explosion ever, caused by a supermassive black hole in the Virgo Cluster. This event created a massive cavity in the surrounding gas, with jets accelerating electrons to near-light speed, producing radio waves. Initial observations by NASA's Chandra X-ray Observatory in 2016 revealed unusual features, later confirmed by radio telescopes. The cavity is so vast that 15 Milky Way galaxies could fit inside, and light would take 1.5 million years to cross it.

What significant event was observed in the cosmos according to the text?

Describe the role of the supermassive black hole mentioned in the text.

What did astronomers first notice about the cluster's central galaxy?

How large is the cavity created by the black hole, according to the study?

What is the significance of the light traveling across the gap mentioned in the text?