Researchers recently discovered stars in our galaxy that weren’t moving the way they should if they had been born in the Milky Way. Where did they come from? I discuss the finding and how it connects to the game Small World.
And for more information, check out these resources:
- Galactic Ghosts: Gaia Uncovers Major Event in the Formation of the Milky Way
- Astronomers discover the giant that shaped the early days of our Milky Way
- Paper: Helmi, Babusiaux, Koppelman, Massari, Veljanoski, & Brown, Nature, 563: 85 (2018): Nature, pre-print
- Small World from Days of Wonder