Tag: 7galaxy
The strongest known fast radio burst has been traced to a 7-galaxy pileup
NEW ORLEANS — A mind-bogglingly strong spurt of electromagnetic energy has for the first time been traced back to a cluster of seven merging galaxies. The finding could bolster the hypothesis that such mysterious flareups, known as fast radio bursts, originate from bizarre, highly magnetized dead stars called magnetars.
Fast radio bursts, or FRBs, are fleeting explosive events: They last fractions of a second but release as much energy as the sun does in a month. It remains unclear what