Massive stars live fast and die young, making metals along the way.
Meet Leo I, one of the dwarf galaxies that may help us understand the earliest galaxies to form.
Most galaxies take significant fractions of the age of the universe to noticeably change. Others transform themselves in the first two billion years of the universe. How does this happen?
Something unexpected is peering out through the void
We share some exciting highlights from a recent conference
Riddle of the day: What is something young and old, weak and powerful?