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The story of Earth

27 April 2021
6:30pm - 7:30pm
Graphic of two heads talking


Can't tune in during the event? Register to receive the on demand recording. 




How have the planet’s minerals evolved? 

If we want to understand the origins of life on earth, and how early life developed, we need to understand the earth itself and what it was made of. When US mineralogist Robert Hazen was asked if he knew what minerals existed on early Earth, he started a research journey that led to a new idea – mineral evolution – a theory that proposes that the mineralogy of terrestrial planets and moons evolves because of the varied physical, chemical, and biological processes that lead to the formation of new minerals.  

Join Robert Hazen in discussion with UNSW Sydney geologist and astrobiologist Martin Van Kranendonk as they discuss the story of Earth, mineral evolution, where carbon fits into all of this, and the rich challenges of doing science and being able to study nature. 



The Centre for Ideas’ new series of international conversations brings the world to Sydney. Each digital event brings a leading UNSW thinker together with their international peer or hero to explore inspiration, new ideas and discoveries.








This event will be available on the UNSW Centre for Ideas websiteFacebook and YouTube.

A link to watch the livestream will be sent on the event day to registered attendees.




For event enquiries or to discuss your access requirements, please call the Centre for Ideas on 02 9065 0485 or email  

The Centre for Ideas is happy to receive phone calls via the National Relay Service. TTY users, phone 133 677, then ask for 02 9065 0485. Speak and Listen users, phone 1300 555 727 then ask for 02 9065 0485. Internet relay users, visit, then ask for 02 9065 0485. 

Martin Van Kranendonk Headshot

Martin Van Kranendonk

Martin Van Kranendonk is a Professor of Geology and Astrobiology at UNSW Sydney, and is the Director of the Australian Centre for Astrobiology and the Big Questions Institute. Born and trained in Canada, Martin moved to Australia in 1992 to follow his passion for ancient geology, and joined UNSW in 2012. His team investigates the earliest signs of life on Earth, and the environments it inhabited more than three billion years ago. This research is used by NASA and the European Space Agency in the search for life on Mars, and for understanding the origin of life on Earth. Martin has appeared on numerous television documentaries and films around the world and is passionate about engaging people of all ages with the big questions of science.