Category Archives: astrobiology

Methanogens and Cyanobacteria vs. Gaia

Earlier this month, research came to light suggesting that the Permian-Triassic extinction- the greatest mass extinction in the history of the planet- was most likely caused by a population explosion of methane-producing bacteria (aka methanogens), probably caused by the large … Continue reading

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Farewell to the methane of Mars

Last month, the Curiosity team announced that they had not detected any methane on Mars.  This was something of a disappointment, as earlier studies had suggested, somewhat controversially, that methane was present at detectable levels- and on, Earth, anyway, the … Continue reading

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Early Mars rich in O2?

So, a few weeks ago, there was a report out that suggested Mars may have had a more oxygen rich environment in its early history than previously suspected.  While it’s not clear that this means Mars had an oxygenated atmosphere- … Continue reading

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Thoughts on Inspiration Mars

I generally take a dim view of people who say we shouldn’t spend money on space when there are plenty of problems down here, but this may be the first instance I’m inclined to agree with them. Inspiration Mars, for … Continue reading

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