When the Earth Had Two Moons: Cannibal Planets, Icy Giants, Dirty Comets, Dreadful Orbits, and the Origins of the Night Sky: Audiobook
According to The Books Insider's catalog data, the When the Earth Had Two Moons: Cannibal Planets, Icy Giants, Dirty Comets, Dreadful Orbits, and the Origins of the Night Sky audiobook runs 9.2 hours unabridged, narrated by Adam Verner (about 6.1 hours at 1.5× playback speed).
The instrument When will you finish it?
Based on 9.2 hours of listening.
| Your pace | You'll finish in |
|---|---|
| 30 min / day | 19 days |
| 1 hour / day | 10 days |
| 2 hours / day | 5 days |
| 1 hour / day at 1.5× | 7 days |
You'll finish in – by –
Part of The Audiobook Finish-Time Calculator: the same instrument for any audiobook we measure.
What our data says
- At 9.2 hours, it runs longer than 66% of the 1,009 Astronomy & Physics audiobooks in our catalog.
More narrated by Adam Verner
Adam Verner narrates 591 unabridged audiobooks in our catalog, 4,882 hours in all.
About as long, on the Astronomy & Physics shelf
127 Astronomy & Physics audiobooks in our catalog run within 10% of this length. The most popular on the store:
Computed from 409,794 English-language unabridged audiobooks in The Books Insider catalog (store data read November 3, 2026). Lengths are the store's own running times. Methodology.
About this listen
When the Earth Had Two Moons: Cannibal Planets, Icy Giants, Dirty Comets, Dreadful Orbits, and the Origins of the Night Sky is an audiobook by Erik Asphaug: a 9.2-hour unabridged recording, read by Adam Verner, released October 29, 2019, on the Astronomy & Physics and Learn Something New shelves.
The listen at a glance
- Length
- 9.2 hrs
- Narrated by
- Adam Verner
- Released
- October 29, 2019
- Format
- Unabridged audiobook
- Language
- English
- Store shelves
- Astronomy & Physics, Learn Something New
- ISBN
- 9780062895080
How to listen to When the Earth Had Two Moons: Cannibal Planets, Icy Giants, Dirty Comets, Dreadful Orbits, and the Origins of the Night Sky free
New members at audiobooks.com get three free audiobooks with the trial.
Separately, the store's catalog carries more than 10,000 audiobooks that are always free to stream.
Start listening freeQuestions listeners ask
How long is the When the Earth Had Two Moons: Cannibal Planets, Icy Giants, Dirty Comets, Dreadful Orbits, and the Origins of the Night Sky audiobook?
When the Earth Had Two Moons: Cannibal Planets, Icy Giants, Dirty Comets, Dreadful Orbits, and the Origins of the Night Sky runs 9.2 hours unabridged. At 1.5× speed that drops to roughly 6.1 hours.
Is the When the Earth Had Two Moons: Cannibal Planets, Icy Giants, Dirty Comets, Dreadful Orbits, and the Origins of the Night Sky audiobook free?
Yes, for new listeners: the trial starts you with three free audiobooks.
Who narrates When the Earth Had Two Moons: Cannibal Planets, Icy Giants, Dirty Comets, Dreadful Orbits, and the Origins of the Night Sky?
When the Earth Had Two Moons: Cannibal Planets, Icy Giants, Dirty Comets, Dreadful Orbits, and the Origins of the Night Sky is narrated by Adam Verner.