We are excited to announce the launch of our new forums! You can access it forums.aavso.org. For questions, please see our blog post. New threads should be posted on the new forums. The forums at aavso.org/forum will become read-only on September 12, 2024.
Exactly a century ago, on the night of October 5/6, 1923, Edwin Hubble’s photographic observations of a Cepheid variable settled the vexing question of the day: Our Milky Way is not the entire universe.