The main topic for our 20 October 2018 monthly meeting will be
Could there be life elsewhere in the Solar System or Galaxy?
presented by Dr David Moriarty.
The question of whether it is likely that there could be life on other planets or moons in our solar system, or elsewhere in the galaxy, is informed by studies into the origin of life here. If there is life elsewhere, then from our knowledge of chemistry, we would expect it to be similar to that on Earth. The energy generating processes that sustain the life of all organisms depend on the transition metals, especially iron, copper and nickel. Their role points to the geochemical origins of life on Earth soon after it cooled and oceans had formed. From these aspects David will explore whether extra-terrestrial life could be microbes or more complex, multicellular organisms.
David recommends that attendees read the summary of the talk he gave to AAQ in 2011 on the same topic. Those articles provide an important background to the upcoming talk. A PDF (750kb) combining his September and October 2011 articles The Origin and Evolution of Life is available at this link.