How big can galaxies and black holes get?
Given what we know about our universe, what is the most massive possible observable galaxy at a given time?
Given what we know about our universe, what is the most massive possible observable galaxy at a given time?
Last year’s discovery of CR7, an intriguing galaxy in the early universe, encouraged many exotic explanations. New observations somewhat spoil the party
Every massive galaxy hosts a supermassive black hole – but how do these cosmic monsters affect the stars they share their galaxy with?
Have we caught a glimpse of some of the earliest black holes in the universe, and what does it mean for our understanding of the early universe?
Biased supermassive black hole samples may compromise well-known black hole-galaxy scaling relations.
What makes up the innards of the brightest galaxy in the universe?