NASA scientists have recently visited the stromatolite formations in the Pilbara - known as possibly the oldest existing evidence of biogenic life on Earth - to give context to their studies of similar formations on Mars.

<p>NASA scientists have recently visited the stromatolite formations in the Pilbara - known as possibly the oldest existing evidence of biogenic life on Earth - to give context to their studies of similar formations on Mars.</p>

Gary Adshead will keep you up to date with all the latest breaking stories and issues on 6PR Mornings.

<p>Gary Adshead will keep you up to date with all the latest breaking stories and issues on 6PR Mornings.</p>

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