Planetary Nebulae and Active Asteroids Get a Closer Look episode artwork

EPISODE · Feb 5, 2026 · 41 MIN

Planetary Nebulae and Active Asteroids Get a Closer Look

from Walkabout the Galaxy · host Josh Colwell, Addie Dove, Jim Cooney, Audrey Martin

There's always been a fuzzy line between asteroids and comets, and new observations of asteroids in the vicinity of Jupiter provide a hint to the origin of the mysterious active asteroids that look like asteroids but act like comets. Elsewhere in the galaxy, the famous ring nebula gets a new spectral image that shows the presence of band of iron. Could it be the remnants of a planet like Earth or Mercury that was vaporized when the nebular formed? Tune in for our take on this, space news, trivia and much more.

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Planetary Nebulae and Active Asteroids Get a Closer Look

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This episode was published on February 5, 2026.

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There's always been a fuzzy line between asteroids and comets, and new observations of asteroids in the vicinity of Jupiter provide a hint to the origin of the mysterious active asteroids that look like asteroids but act like comets. Elsewhere in...

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