New recipe found for making supermassive black hole
Take two primordial galaxies, slam them together to create ‘dark collapse’
![Quasar](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2015/12/122215_ag_blackhole_free.jpg?fit=860%2C460&ssl=1)
ANCIENT HEAVYWEIGHT A quasar like the one illustrated here is an ultrabright galaxy with a supermassive black hole at its center. Scientists want to know how black holes grew fast enough to fuel quasars found less than a billion years after the Big Bang.
M. Kornmesser/ESO