Oldest quasars ever discovered add to 'perplexing' space mystery – Phys.org

Oldest quasars ever discovered add to 'perplexing' space mystery  Phys.orgAstronomers have found 31 of the oldest known quasars burning so soon after the Big Bang that current models struggle to explain how their black holes grew massive enough to power them… Oldest quasars ever discovered add to 'perplexing' space mystery  Phys.orgAstronomers have found 31 of the oldest known quasars burning so soon after the Big Bang that current models struggle to explain how their black holes grew massive enough to power them…