A newly discovered local galaxy re-ignites debate about the role that reionisation plays in quenching ultra-faint dwarf galaxies!
Today’s paper uses simulations to understand how the Milky Way’s stellar halo formed, and also asks: what determines the evolutionary pathway taken by a galaxy over cosmic time?
Interested in the legacy and future of the Arecibo Observatory? Find out more at Dr. Arce’s #AAS240 plenary lecture on Monday, 13th June!
What do mythology, Tolkien, and astrophysics have in common?
Today’s authors use orbital measurements to dynamically “weigh” a group of galaxies. Read on to learn about this method and how the Centaurus A group may be missing some matter!