This hub post presents seven essential facts about the Hubble Constant: what it measures, how astronomers determine it, current value estimates and the Hubble tension. Use this guide to get a concise overview and follow linked deep-dive posts on measurements, history, and the implications for the age and fate of the universe.
Explore 15 significant Galaxies Discovered by the Hubble, each entry listing discovery year, measured redshift, and the notable reason it made headlines. From Hubble Deep Field treasures to unexpected high-redshift galaxies and gravitationally lensed wonders, this illustrated list explains observational context and why each discovery reshaped our view of the cosmos.
