Baby Galaxies Blowing Bubbles
Will we soon be able to see the ionised hydrogen bubbles blown by young galaxies in the early universe?
Searching for Protoclusters
How can we best find protoclusters, the progenitors of today’s galaxy clusters, in the early universe?
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?
Astronomical celebrity, or just another pretender? The curious case of CR7
Last year’s discovery of CR7, an intriguing galaxy in the early universe, encouraged many exotic explanations. New observations somewhat spoil the party
What did the first collections of stars look like?
Simulations of the first groups of stars display a variety of shapes and sizes, and may provide clues as to where their ancestors are hiding today