The Books Insiderindependent audiobook data
Extraterrestrial: The First Sign of Intelligent Life Beyond Earth by Avi Loeb

Extraterrestrial: The First Sign of Intelligent Life Beyond Earth: Audiobook

According to The Books Insider's catalog data, the Extraterrestrial: The First Sign of Intelligent Life Beyond Earth audiobook runs 7.1 hours unabridged, narrated by Robert Petkoff (about 4.7 hours at 1.5× playback speed).

7.1listening hrs
Computers & Technologystore shelf
2021released
Free for new listeners

The instrument When will you finish it?

Based on 7.1 hours of listening.

Days to finish Extraterrestrial: The First Sign of Intelligent Life Beyond Earth at common listening paces
Your paceYou'll finish in
30 min / day15 days
1 hour / day8 days
2 hours / day4 days
1 hour / day at 1.5×5 days

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

What our data says

  • At 7.1 hours, it runs longer than 63% of the 3,827 Computers & Technology audiobooks in our catalog.

About as long, on the Computers & Technology shelf

350 Computers & Technology 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

Extraterrestrial: The First Sign of Intelligent Life Beyond Earth is an audiobook by Avi Loeb: a 7.1-hour unabridged recording, read by Robert Petkoff, released January 26, 2021, on the Computers & Technology and Astronomy & Physics shelves.

The listen at a glance

Length
7.1 hrs
Narrated by
Robert Petkoff
Released
January 26, 2021
Format
Unabridged audiobook
Language
English
Store shelves
Computers & Technology, Astronomy & Physics
ISBN
9780358393788

How to listen to Extraterrestrial: The First Sign of Intelligent Life Beyond Earth 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 free

Questions listeners ask

How long is the Extraterrestrial: The First Sign of Intelligent Life Beyond Earth audiobook?

Extraterrestrial: The First Sign of Intelligent Life Beyond Earth runs 7.1 hours unabridged. At 1.5× speed that drops to roughly 4.7 hours.

Is the Extraterrestrial: The First Sign of Intelligent Life Beyond Earth audiobook free?

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

Who narrates Extraterrestrial: The First Sign of Intelligent Life Beyond Earth?

Extraterrestrial: The First Sign of Intelligent Life Beyond Earth is narrated by Robert Petkoff.