Here's a great interview by John Batchelor (free podcast): https://audioboom.com/boos/4073570-mass-extinction-and-the-structure-of-the-milky-way-jonti-horner-m

Here's a great interview by John Batchelor (free podcast): https://audioboom.com/boos/4073570-mass-extinction-and-the-structure-of-the-milky-way-jonti-horner-m-d-filipovic-e-j-crawford-n-f-h-tothill https://audioboom.com/boos/4073570-mass-extinction-and-the-s...