The search for alien life is examined. Included: a look at the SETI Institute (Search for Extraterrestrial Intelligence). Also: plans for NASA missions to scan for microbial life on moons and planets.
The Season 6 opener explores catastrophes the have affected the planets of the solar system.
The sun is the subject. Included: the birth of the sun; eclipses; and solar storms.
A study of Saturn featuring theories regarding its rings.
Magnetic solar storms are examined, including the possibility of one wreaking havoc on Earth.
Examining the energy in the universe, its various forms, and the way it is transferred and expended.
The moon is the subject.
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