Another Earth

The Universe
Season 3
12 episodes
See below for purchasing options
DVD & Blu-ray
"The Universe" episode no. 41 (season 3)
  • written and directed by Bob Melisso
  • edited by Motoshi Wakabayashi & Lee Stephansky
  • no science consultant credit for this episode....

  • narrated by Erik Thompson
  • Main Title Theme and Original Music by Eric Amdahl
  • Flight 33 Productions, (c) 2009 A & E TV Networks
  • 1 documentary @ 44 minutes

In-Depth Analysis Review

by Martin Izsak

This is so far, by far, the most interesting episode of the third season of "The Universe", combining knowledge of the search for exoplanets with geology and biology theory to try to predict where we might find a planet similar enough to our own to produce not only life, but a kindred civilization.

Exoplanets discussed include:

  • 51 Pegasi b (It is not revealed that this is Bellerophon)
  • 70 Virginis b (previously mislabeled as "Goldilocks")
  • Tres-4
  • Gliese 581 c
  • Gliese 581 d
  • HD69830d
  • as yet undiscovered planets around Alpha Centauri

    plus a look at planets in our solar system:

  • Mars
  • Venus

Topics include:

  • the solar "goldilocks" habitable zone
  • the galactic habitable zone
  • the advancement (and partial devil's advocate debunking) of the Drake Equation by Frank Drake and Carl Sagan
  • proper size of another Earth-like planet being somewhere from 1/3 Earth mass to 10 times Earth mass.
  • The Kepler Mission
  • The Terrestrial Planet Finder

from the disc sleeve:

Another Earth:
Are we alone, or is there another Earth-like planet somewhere in the universe? What's the elusive recipe for a planet like ours? Find out how unique we are - or aren't - in this universe filled with billions of stars and trillions of planets. How rare would life of any kind - in particular advanced life we could communicate with - be on any Earth-like planet we find?

Chapter List:

  1. Introduction
  2. Theory
  3. Habitable Zones
  4. Super Earths
  5. Alpha Centauri
  6. Kepler Mission

Participants include:

Victoria Meadows

Head of the Virtual Planet Laboratory at
University of Washington, Seattle.

creates scientific computer models of planets

Geoffrey Marcy

Astronomer, Exoplanet Locator
University of California, Berkeley

As of the first 300 exoplanets discovered by 2009, he and colleague Paul Butler had been credited with finding more extra-solar planets than anyone else.

Chris McKay

NASA Ames Research Center

spent over 25 years decoding the origin of life on Earth in order to find it elsewhere.

Wesley Traub

astronomical instrument developer at
Jet Propulsion Labs (JPL)

Peter Ward

professor of biology and geology at
University of Washington in Seattle

William Borucki

principle investigator of the
Kepler telescope Mission,
Space and Earth Sciences
Research Laboratory

Greg Laughlin

University of California, Santa Cruz

creates computer models of solar systems such as Alpha Centauri

This documentary has become available on DVD and Blu-ray.
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The Universe
Season 3 Box Set
12 episodes



Blu-ray U.S.

Blu-ray Canada

Blu-ray U.K.

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