On the Origin of Time: The Sunday Times bestselling physics book exploring 'Stephen Hawking’s biggest legacy': Audiobook
According to The Books Insider's catalog data, the On the Origin of Time: The Sunday Times bestselling physics book exploring 'Stephen Hawking’s biggest legacy' audiobook runs 12.2 hours unabridged, narrated by Ethan Kelly (about 8.1 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 85% of the 1,009 Astronomy & Physics audiobooks in our catalog.
More narrated by Ethan Kelly
Ethan Kelly narrates 18 unabridged audiobooks in our catalog, 204 hours in all.
About as long, on the Astronomy & Physics shelf
114 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
On the Origin of Time: The Sunday Times bestselling physics book exploring 'Stephen Hawking’s biggest legacy' is an audiobook by Thomas Hertog: a 12.2-hour unabridged recording, read by Ethan Kelly, released May 18, 2023, on the Astronomy & Physics shelf.
The listen at a glance
- Length
- 12.2 hrs
- Narrated by
- Ethan Kelly
- Released
- May 18, 2023
- Format
- Unabridged audiobook
- Language
- English
- Store shelves
- Astronomy & Physics
- ISBN
- 9781529919707
How to listen to On the Origin of Time: The Sunday Times bestselling physics book exploring 'Stephen Hawking’s biggest legacy' 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 On the Origin of Time: The Sunday Times bestselling physics book exploring 'Stephen Hawking’s biggest legacy' audiobook?
On the Origin of Time: The Sunday Times bestselling physics book exploring 'Stephen Hawking’s biggest legacy' runs 12.2 hours unabridged. At 1.5× speed that drops to roughly 8.1 hours.
Is the On the Origin of Time: The Sunday Times bestselling physics book exploring 'Stephen Hawking’s biggest legacy' audiobook free?
Yes, for new listeners: the trial starts you with three free audiobooks.
Who narrates On the Origin of Time: The Sunday Times bestselling physics book exploring 'Stephen Hawking’s biggest legacy'?
On the Origin of Time: The Sunday Times bestselling physics book exploring 'Stephen Hawking’s biggest legacy' is narrated by Ethan Kelly.
Is On the Origin of Time: The Sunday Times bestselling physics book exploring 'Stephen Hawking’s biggest legacy' worth listening to at 1.5× speed?
At 1.5× you'd finish in about 8.1 hours, saving 4.1 hours.