The Books Insiderindependent audiobook data
Billions & Billions: Thoughts on Life and Death at the Brink of the Millennium by Carl Sagan

Billions & Billions: Thoughts on Life and Death at the Brink of the Millennium: Audiobook

According to The Books Insider's catalog data, the Billions & Billions: Thoughts on Life and Death at the Brink of the Millennium audiobook runs 9.7 hours unabridged, narrated by Ann Druyan and Adenrele Ojo (about 6.5 hours at 1.5× playback speed).

9.7listening hrs
Animals & Nature (Non-Fiction)store shelf
2017released
Free for new listeners

The instrument When will you finish it?

Based on 9.7 hours of listening.

Days to finish Billions & Billions: Thoughts on Life and Death at the Brink of the Millennium at common listening paces
Your paceYou'll finish in
30 min / day20 days
1 hour / day10 days
2 hours / day5 days
1 hour / day at 1.5×7 days

Part of The Audiobook Finish-Time Calculator: the same instrument for any audiobook we measure.

What our data says

  • At 9.7 hours, it runs longer than 74% of the 4,073 Animals & Nature (Non-Fiction) audiobooks in our catalog.

More narrated by Ann Druyan

Ann Druyan narrates 9 unabridged audiobooks in our catalog, 102 hours in all.

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

Billions & Billions: Thoughts on Life and Death at the Brink of the Millennium is an audiobook by Carl Sagan: a 9.7-hour unabridged recording, read by Ann Druyan and Adenrele Ojo, released July 25, 2017, on the Animals & Nature (Non-Fiction) shelf.

The listen at a glance

Length
9.7 hrs
Narrated by
Ann Druyan, Adenrele Ojo
Released
July 25, 2017
Format
Unabridged audiobook
Language
English
Store shelves
Animals & Nature (Non-Fiction)
ISBN
9781531888510

How to listen to Billions & Billions: Thoughts on Life and Death at the Brink of the Millennium free

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Questions listeners ask

How long is the Billions & Billions: Thoughts on Life and Death at the Brink of the Millennium audiobook?

Billions & Billions: Thoughts on Life and Death at the Brink of the Millennium runs 9.7 hours unabridged. At 1.5× speed that drops to roughly 6.5 hours.

Is the Billions & Billions: Thoughts on Life and Death at the Brink of the Millennium audiobook free?

Yes, for new listeners: the trial starts you with three free audiobooks.

Who narrates Billions & Billions: Thoughts on Life and Death at the Brink of the Millennium?

Billions & Billions: Thoughts on Life and Death at the Brink of the Millennium is narrated by Ann Druyan and Adenrele Ojo.