231: How big is space? - podcast episode cover

231: How big is space?

Spacepod
Feb 01, 2026•10 min•Ep. 231
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Episode description

A question from Issac, age 4. Dr. Jeff Rich answers. For more on Dr. Rich's work, see episodes 14, 81, 118, or 159, or visit the Carnegie Observatories website. Find the pocket solar system instructions here.

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