It may seem obvious now that other galaxies lie beyond the Milky Way, but less than 100 years ago, some astronomers held a view of our universe that was a little more ... self-centered. In the 1920s, astronomers were locked in the "Great Debate" — whether Earth was center of the universe and if the universe was just the Milky Way. Today, Scientist in Residence <a href="https://www.npr.org/people/1082526815/regina-g-barber">Regina G. Barber</a> talks to <a href="https://twitter.com/drvictoriosa?lang=hi">Dr. Vicky Scowcroft</a> about the stars that ended astronomy's Great Debate. Follow Short Wave on <a href="http://FollowShort Wave on Twitter for more on everything science. ">Twitter</a> for more on everything science. Learn more about sponsor message choices: <a href="https://podcastchoices.com/adchoices">podcastchoices.com/adchoices</a> <a href="https://www.npr.org/about-npr/179878450/privacy-policy">NPR Privacy Policy</a>

Worm Blobs From The Bowels Of The Earth

New discoveries, everyday mysteries, and the science behind the headlines — in just under 15 minutes. It's science for everyone, using a lot of creativity and a little humor. Join hosts Emily Kwong and Regina Barber for science on a different wavelength.If you're hooked, try Short Wave Plus. Your subscription supports the show and unlocks a sponsor-free feed. Learn more at plus.npr.org/shortwave