Into the Unknown: The Quest to Understand the Mysteries of the Cosmos: Audiobook
According to The Books Insider's catalog data, the Into the Unknown: The Quest to Understand the Mysteries of the Cosmos audiobook runs 12.2 hours unabridged, narrated by Kelsey Johnson (about 8.2 hours at 1.5× playback speed).
The instrument When will you finish it?
Based on 12.2 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 12.2 hours, it runs longer than 86% of the 1,009 Astronomy & Physics audiobooks in our catalog.
About as long, on the Astronomy & Physics shelf
112 Astronomy & Physics audiobooks in our catalog run within 10% of this length. The most popular on the store:
- The Holographic Universe: The Revolutionary Theory of Reality
- The Future of Humanity: Terraforming Mars, Interstellar Travel, Immortality, and Our Destiny Beyond Earth
- Calculating the Cosmos: How Mathematics Unveils the Universe
- Endurance: A Year in Space, A Lifetime of Discovery
- Rocket Men: The Daring Odyssey of Apollo 8 and the Astronauts Who Made Man's First Journey to the Moon
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
Into the Unknown: The Quest to Understand the Mysteries of the Cosmos is an audiobook by Kelsey Johnson: a 12.2-hour unabridged recording, read by Kelsey Johnson, released October 15, 2024, on the Astronomy & Physics shelf.
The listen at a glance
- Length
- 12.2 hrs
- Narrated by
- Kelsey Johnson
- Released
- October 15, 2024
- Format
- Unabridged audiobook
- Language
- English
- Store shelves
- Astronomy & Physics
- ISBN
- 9781668644140
How to listen to Into the Unknown: The Quest to Understand the Mysteries of the Cosmos 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 Into the Unknown: The Quest to Understand the Mysteries of the Cosmos audiobook?
Into the Unknown: The Quest to Understand the Mysteries of the Cosmos runs 12.2 hours unabridged. At 1.5× speed that drops to roughly 8.2 hours.
Is the Into the Unknown: The Quest to Understand the Mysteries of the Cosmos audiobook free?
Yes, for new listeners: the trial starts you with three free audiobooks.
Who narrates Into the Unknown: The Quest to Understand the Mysteries of the Cosmos?
Into the Unknown: The Quest to Understand the Mysteries of the Cosmos is narrated by Kelsey Johnson.
Is Into the Unknown: The Quest to Understand the Mysteries of the Cosmos worth listening to at 1.5× speed?
At 1.5× you'd finish in about 8.2 hours, saving 4.1 hours.