The Believer: Alien Encounters, Hard Science, and the Passion of John Mack: Audiobook
According to The Books Insider's catalog data, The Believer: Alien Encounters, Hard Science, and the Passion of John Mack runs 12.3 hours as an unabridged audiobook, narrated by Phil Thron (about 8.2 hours at 1.5× playback speed).
The instrument When will you finish it?
Based on 12.3 hours of listening.
| Your pace | You'll finish in |
|---|---|
| 30 min / day | 25 days |
| 1 hour / day | 13 days |
| 2 hours / day | 7 days |
| 1 hour / day at 1.5× | 9 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 12.3 hours, it runs longer than 92% of the 10,901 Medicine & Naturopathy audiobooks in our catalog.
More narrated by Phil Thron
Phil Thron narrates 135 unabridged audiobooks in our catalog, 1,503 hours in all.
About as long, on the Medicine & Naturopathy shelf
662 Medicine & Naturopathy audiobooks in our catalog run within 10% of this length. The most popular on the store:
- Journey of Souls: Case Studies of Life Between Lives
- Letting Go: The Pathway of Surrender
- Brain Food: The Surprising Science of Eating for Cognitive Power
- The Energy Codes: The 7-Step System to Awaken Your Spirit, Heal Your Body, and Live Your Best Life
- Angels in My Hair: The True Story of a Modern-Day Irish Mystic
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
The Believer: Alien Encounters, Hard Science, and the Passion of John Mack is an audiobook by Ralph Blumenthal: a 12.3-hour unabridged recording, read by Phil Thron, released July 13, 2021, on the Medicine & Naturopathy and Biography & Memoir shelves.
The listen at a glance
- Length
- 12.3 hrs
- Narrated by
- Phil Thron
- Released
- July 13, 2021
- Format
- Unabridged audiobook
- Language
- English
- Store shelves
- Medicine & Naturopathy, Biography & Memoir
- ISBN
- 9781666133561
How to listen to The Believer: Alien Encounters, Hard Science, and the Passion of John Mack 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 Believer: Alien Encounters, Hard Science, and the Passion of John Mack as an audiobook?
The Believer: Alien Encounters, Hard Science, and the Passion of John Mack runs 12.3 hours unabridged. At 1.5× speed that drops to roughly 8.2 hours.
Is The Believer: Alien Encounters, Hard Science, and the Passion of John Mack free as an audiobook?
Yes, for new listeners: the trial starts you with three free audiobooks.
Who narrates The Believer: Alien Encounters, Hard Science, and the Passion of John Mack?
The Believer: Alien Encounters, Hard Science, and the Passion of John Mack is narrated by Phil Thron.
Is The Believer: Alien Encounters, Hard Science, and the Passion of John Mack worth listening to at 1.5× speed?
At 1.5× you'd finish in about 8.2 hours, saving 4.1 hours.