Ideas On The Origin of Life as Semi-Randomly Chosen by Joe, Part 3 of 4:
A Planet Wrought With Destruction, Suddenly Begets Life
In this segment from NOVA’s “Origins” series, Neil deGrasse Tyson goes into even greater detail about the violent history of Earth. Cosmic warfare and the “heavy bombardment" created an environment that was at the same time inhospitable, but teeming with the building blocks for future life.
In the time since COSMOS, scientists have been able to dig through geologic fossils looking for signs of ancient complex biochemistry, from that moment when Earth tipped from destruction to biogenesis. We have good proof that some ingredients for life arrived from outer space in the form of organic seeds from meteorites! And ideas about where else we may find life are beginning to take form … perhaps even in our own solar system (hint: Europa looks good).
Warning: Extreme astronomical violence ahead, if that bothers you.