galactic evolution
A Star was Blocking a Galaxy, but Now it’s Moved Enough That Astronomers can Finally Examine What it Was Hiding
One of the biggest puzzles in astronomy, and one of the hardest ones to solve, concerns the formation and evolution…
How Do Stars Get Kicked Out of Globular Clusters?
Globular clusters are densely-packed collections of stars bound together gravitationally in roughly-shaped spheres. They contain hundreds of thousands of stars.…
The Dark Energy Camera has Captured a Million Images, an Eighth of the Entire sky. Here are Some of its Best Pictures so far
The Dark Energy Survey recently released 15 images that showcase the types of objects it viewed during the six-year campaign.
Primordial Black Holes Could Have Triggered the Formation of Supermassive Black Holes
Computer simulations show the role primordial black holes may have played in the early universe, but the process isn't clear…
Supermassive Black Holes Shut Down Star Formation
Supermassive black holes play a central role to weaken star production in their galaxies.
The Milky Way’s Most Recent Meal was a Galaxy it Gobbled up 8-10 Billion Years ago
The Milky Way had a sausage galaxy breakfast about 8 billion years ago
The Milky Way Hasn’t Been Evenly Mixed
Gas from the intergalactic medium constantly rains down on galaxies, fueling continued star formation. New research has shown that this…
Supermassive Black Hole Winds Were Already Blowing Less Than a Billion Years After the Big Bang
New evidence shows that black holes and galaxies have a significant effect on each other in young galaxies.
Nearby Ancient Dwarf Galaxies Have a Surprising Amount of Dark Matter
According to new research led from MIT, ancient dwarf galaxies may have had more dark matter than previously thought.
Some of the Milky Way’s oldest stars aren’t where they’re expected to be
Some of the oldest stars in our galaxy have orbits similar to the Sun, and we don't know why