Updated on 18 November 2013
"We don't see the microbes themselves, but we see large scale structures that the microbes constructed before they died. We see tufts and wrinkles and when we look down the microscope - we see filaments tangled in sand grains. We are also seeing organic material which are the actual microbes but they are decomposed to the point that we cannot see a cell. You just see a mass of carbon-rich material," he said in the news report.
The findings of the study that was first published in the journal Astrobiology has concluded that these findings may help with the search for life on other planets.