Hi everyone...Andrew & Dr Fred here...and here's the rundown of what's in this episode...

One word...Mars.

First up....methane on Mars...it's there but where's it coming from? We look at the possibilities.
Next up...a Mars volcano...and it's effect on the planets history.
Finally...The Martian...now available via DVD and Blu-Ray..so we revisit the science of the movie. How feasible is it?

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