Hi Briterican,
There seems to be plenty of notions about how life got its start, but they obviously can't all be right. I hope to live long enough to be here for a breakthrough in this field.
That was my opinion when I wrote
Building Blocks of Life (2005), which also addresses the numerous prebiotic molecules found in space, and their riding to the surface of the earth during asteroid\meteor bombardment (especially in the early earth astronomical environment, when they were much more prevalent). Also see
Message 15.
However, given the iridium layer at the KT boundary, it seems that any controversy regarding the dinosaurs' extinction seems to be more about which impact(s) were responsible rather than were impact(s) responsible.
There are also impact craters associated with other extinction events,
NASA -
Evidence Of Meteor Impact Found Off Australian Coast
Enjoy.
Edited by RAZD, : m
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