Tim Urban @waitbutwhy
There are people alive today who were around when we still thought the Milky Way was the entire universe https://t.co/GPx6vsJYh9 — PolitiTweet.org
George Ioannidis @Kupeplex
Cute sections from the astronomy section of Popular science monthly in 1902 talking about the Andromeda Nebula and… https://t.co/6rPCkIep6U