Today on Far Future Horizons we return to the topic of Biogenesis with another exciting episode of the acclaimed PBS documentary series NOVA where we take a look at Life’s Rocky Start.
Four
and a half billion years ago, the young Earth was a hellish place, a seething
chaos of meteorite impacts, volcanoes belching noxious gases, and lightning
flashing through a thin, torrid atmosphere.
Goethite (California) from the collections of the Mineralogical & Geological Museum at Harvard University. |
Then,
in a process that has puzzled scientists for decades, life emerged. But how?
Life's Rocky Start: Six Geological Ages |
NOVA
joins mineralogist Robert Hazen as he journeys around the globe. From an
ancient Moroccan market to the Australian Outback, he advances a startling and
counterintuitive idea—that the rocks beneath our feet were not only essential
to jump-starting life, but that microbial life helped give birth to hundreds of
minerals we know and depend on today.
Calcite (Cumbria, England) from the collections of the Mineralogical & Geological Museum at Harvard University. |
It's
a theory of the co-evolution of Earth and life that is reshaping the
grand-narrative of our planet’s story.
This episode of NOVA can be purchased
directly from PBS Home Video.
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