Story Timeline
Who reported a story first, and how coverage spread across the spectrum.
Earliest known compact quasar pair poses a black hole growth puzzle
1 articles over 1 hours.
First centrePhysfirst overall
How this was worked out
Every article INDB grouped into this story, in the order the outlets published them (times in UTC, from the outlets' feeds).
How INDB scores stories · Data: stories INDB grouped from the outlets on the sources page.