When did Horizon Season 40 Episode 9 air?
Horizon Season 40 Episode 9 aired on March 27, 2003.


Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Are we alone in the Universe? Or are there aliens somewhere in space? New evidence suggests not only might other life-forms be out there, they may even be living on the planet right next door to us - Mars. Recent discoveries have shown that Mars has all the ingredients for life, including water. Now the Mars Odyssey probe, launched in April 2001, has detected huge frozen areas of permafrost, just like that found in the Antarctic on Earth. According to astronomers, the position of this frozen slush could hold the key to Mars' mysterious water cycle. And the surface ice may hide something even more exciting below.
Direct answers for episode-level questions and details.
Horizon Season 40 Episode 9 aired on March 27, 2003.
This episode runs for approximately 60 minutes.
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