[baja_blast]

> This was not true of the Martian soil; on Mars, the second and third nutrient injections did not produce any further release of labeled gas

But that's probably because martian microbes are less tolerant of high temperatures when compared to Earth microbes. But, yes I am aware there are other non life factors that could have resulted in a positive detection. But my point is why would we never follow up with further experiments to test for possible chemical reactions?

[deelowe]

Because we have enough evidence already to draw conclusions? Space exploration is expensive.