Help! This new dwarf planet needs a name
Nov 10, 2026 · 12m
Summary
Host Flora Lixman interviews Dr. Matthew Holman about the discovery of a new dwarf planet candidate, 2026 ED 138, in the Kuiper Belt. The episode explores the scientific methods used to confirm the object's size and composition, noting its reddish surface and why it remained hidden for decades. The conversation also covers the challenges of naming new celestial bodies and the ongoing excitement of exploring the outer solar system.
Topics discussed
Sponsorship and show introduction
Announcement of new dwarf planet discovery
The vetting process and false positives
Defining a dwarf planet and measuring size
Surface composition and comparison to Pluto
Why this object was only found now
Estimating the number of undiscovered objects
The discovery as a career milestone
The naming process and listener suggestions
Naming conventions and the theme of discovery
Credits and production team
Sponsorship: Poster House
Listen ad-free on Castria