Podcaster: Rob Sparks. Guest: Eric Peng

This image has an empty alt attribute; its file name is 20200411_NOIRLab-logo-300x244.png

Title: The Origins Of Ultra Compact Dwarf Galaxies

Organization: NOIRLab

Links: NOIRLab social media channels can be found at: ; ; ; @NOIRLabAstro

NOIRLab Press Release:


Astronomers using the Gemini North telescope have captured the eroding remains of more than 100 dwarf galaxies as they transition into ultra-compact dwarf galaxies, objects with masses much greater than star clusters yet much smaller than dwarf galaxies. In this podcast, NOIRLab’s Eric Peng discusses what these galaxies tell us about the formation of ultra compact dwarf galaxies.

Bio: Rob Sparks is in the Communications, Education and Engagement group at NSF’s NOIRLab in Tucson, Arizona.

Eric Peng is an Astronomer at NSF’s National Optical-Infrared Astronomy Research Laboratory (NOIRLab), where he studies the evolution of nearby galaxies, and is Project Scientist for NOIRLab’s US Extremely Large Telescope Program (US-ELTP). As part of the US-ELTP, he is working to make the next generation of large, optical-infrared ground-based telescopes a reality, and accessible to all.

End of podcast:

365 Days of Astronomy

The 365 Days of Astronomy Podcast is produced by Planetary Science Institute. Audio post-production by Richard Drumm. Bandwidth donated by and wizzard media. You may reproduce and distribute this audio for non-commercial purposes. 

This show is made possible thanks to the generous donations of people like you! Please consider supporting to our show on and get access to bonus content. 

After 10 years, the 365 Days of Astronomy podcast is entering its second decade of sharing important milestone in space exploration and astronomy discoveries. Join us and share your story. Until tomorrow! Goodbye!