Did ‘Martian’ methane signal come from Earth? – space – 23 December 2010 – New Scientist

Claims that Mars’s atmosphere contains methane, which have fuelled speculations that the planet hosts life, may be premature. A key piece of evidence for methane on Mars may actually be due to Earth-based methane, say researchers led by Kevin Zahnle of the NASA Ames Research Center in Moffett Field, California. “This is not a done … Continue reading