I imagined it differently. I pictured a warm shallow pool under a friendly blue sky, overseen by a kindly shining sun and gently stirred by a breeze. And in the pool, my far distant slime-mold ancestors were busily evolving into my grandfather. Miracle Planet shows a past that is far more savage and chaotic than my imaginings.
Miracle Planet is a five-part documentary made by a joint Canadian and Japanese team. The first two parts, “The Violent Past” and “Snowball Earth” assert that in the far distant past the entire earth was frozen solid two miles deep all the way to the equator, probably twice. The friendly blue sky that I imagined was, at some points, actually red from the high concentration of methane and then dark from debris from massive volcanic eruptions. And a meteor hit the earth millions of years before the well-known one causing the dinosaur extinction and made the planet so hot that the rocks boiled and melted miles deep. The documentary explains the timing of these events, which were millions of years apart, but I find geologic time hard to keep track of, since the time spans are so unimaginably huge.
But the most amazing part of the documentary (and perhaps the most amazing thing ever) is that life persisted! Scientists used to think that the freezing and boiling catastrophes sterilized the earth and destroyed all life on earth. Then they thought life evolved again. But now they think that bacteria could have survived, because they know bacteria survive miles deep in diamond mines in South Africa.
I learned many other things such as the greatest volcanic eruption ever in the history of the earth occurred in what is now Siberia and made ninety-five percent of the existing species extinct. Also that dinosaurs were very bird-like, in that they were better at oxygen exchange than the early mammals because they had air sacs. The series moves up in time to early humans.
I came across this series when I created a display on “The End of the World” and it will fascinate buffs of apocalyptic scenarios. Even if I can accept my personal mortality (and less readily the mortality of my loved ones), the extinction of our species is still horrible to contemplate, let alone the extinction of all life on earth.
Miracle Planet has wonderful images and graphics and I also recommend it for those interested in science. The library owns a lot of great science documentaries and I love them because, at their best, they bring an immediacy to a subject that a book can lack, because sometimes a picture is worth a thousand words.
Check the WRL catalog for Miracle Planet.