The properties of faint dwarf galaxies around the Milky Way can reveal a lot about the conditions of the early universe, the ...

Although our Universe appears to be stable, it might just be in a temporary state of false calm that could rupture in the blink of an eye. We consider a vacuum to be the lowest energy state of the ...

New simulations show that early ultraviolet light controlled whether ultra-faint dwarf galaxies could form stars.

Ultra-faint dwarf galaxies – tiny satellite galaxies orbiting the Milky Way – have long been seen as cosmic fossils. Now, a new study published today in Monthly Notices of the Royal Astronomical ...