An Australian geologist has identified what could be the first ever active flow of fluids through gullies on Mars.
Map Showing location of study area
Mars Global Surveyor spacecraft image of study area.
Arrows point to dark lines that are the suspected annual flow activity along the gullies and valleys
University of Melbourne geologist, Dr Nick Hoffman, identified recent gully and channel development near the polar regions of Mars from images taken by the Mars Global Surveyor spacecraft. But contrary to the majority of scientific opinion which suggests that such features were carved by liquid water, Hoffman says the flow is most likely frozen carbon dioxide.
NASA is desperate to find signs of liquid water on Mars so they have a target for the next generation of Mars landers and rovers to go and search for life, but their search could prove fruitless if Hoffmans analysis of the images is correct.
Jason Major | EurekAlert!
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