Image for A new kind of life?

A new kind of life?

Duration: 04:54

Dallas speaks to NASA astrobiologist Dr Felisa Wolfe-Simon about the discovery of arsenic-loving microbes. Does this mean that life on Earth has arisen not once, but twice? If so, then it has profound implications for the Drake Equation and the search for alien life.

Available since: Fri 10 Dec 2010


Dallas Campbell
Tim Usborne
Tim Usborne
Ed Booth
Executive Producer
Tina Fletcher
Executive Producer
Dermot Caulfield

This clip is from

The Search for Life: The Drake Equation

Film about the equation used to estimate the number of extra-terrestrial civilisations.

First broadcast: 14 Dec 2010

Image for The Search for Life: The Drake Equation Not currently available on BBC iPlayer

Featured in...

  • BBC Nature

    Be captivated, informed and inspired by the world's wildlife.

BBC © 2014 The BBC is not responsible for the content of external sites. Read more.

This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.

Added. Check out your playlist Dismiss