Episode Ratings Grid

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Episode Power Rankings

The peaks and the valleys. Find the essential episodes — and the ones to skip.

#1
S1E8 9.1
Journeys in Space and Time

A voyage to see how star patterns change over millions of years is followed by a journey to the planets of other stars, and a look at the possibility of time travel.

#2
S1E2 9.0
One Voice in the Cosmic Fugue

Dr. Sagan's cosmic calendar makes the history of the universe understandable and frames the origin of the Earth and the evolution of life. We see the evolutionary process unfold, from microbes to humans.

#3
S1E9 9.0
The Lives of the Stars

Using computer animation and amazing astronomical art, Dr. Sagan shows how stars are born, live, die and sometimes collapse to form neutron stars or black holes.

#4 The Edge of Forever S1E10 9.0
#5 Who Speaks for Earth? S1E13 9.0
#6 The Shores of the Cosmic Ocean S1E1 8.9
#7 Heaven and Hell S1E4 8.9
#8 Blues for a Red Planet S1E5 8.9
#9 Encyclopaedia Galactica S1E12 8.9
#10 Harmony of the Worlds S1E3 8.8

Lowlights

#13 S1E11 The Persistence of Memory 8.7

The brain is the focus of this fascinating portion of our journey as Dr. Sagan examines another of the intelligent creatures with whom we share the planet Earth — whales.

#12 The Backbone of Night S1E7 8.8
#11 Travellers' Tales S1E6 8.8
#10 Harmony of the Worlds S1E3 8.8
#9 Encyclopaedia Galactica S1E12 8.9

The Quality Arc

Each point is an episode, plotted in order. Colored bands mark season boundaries. Look for the rise, the plateau, or the decline.

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Episode Engagement

High votes + high rating = beloved classic. High votes + low rating = notorious stinker. Low votes + high rating = hidden gem.

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