If we discover life with radically different biochemistry to that found on Earth, then that would rule out panspermia, nothing I have told you is compelling evidence for panspermia. But there are some odd coincidences that we should consider.

Professor Lattanzio

John Lattanzio is an astrophysicist who works on understanding stars and how they make the elements that comprise our world. He serves as President of the International Astronomical Union’s Commission on Stellar Evolution and is a professor in the Monash Centre for Astrophysics at Monash University in Australia. Previously, Lattanzio held positions in Canada and France, at the University of Cambridge’s Institute of Astronomy, and at the Lawrence Livermore National Laboratory. Lattanzio is an Honorary Fellow of the Astronomical Society of Australia.

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