There is methane in Gale Crater, can life be far behind – Mars Curiosity rover update

#nasacuriosity NASAs Curiosity Mars Rover has identified mysterious spikes of methane in the Gale Crater and scientists believe that this find could indicate evidence of life on the Red Planet. It is a fact that plumes of methane have been identified on the planet in the past, but none as sudden as the "venting" measured at Gale Crater.
Curiosity has made this discovery by means of an instrument and these spikes in the gas cannot be easily explained by geology, or by organic material brought to the planet by comets or asteroids. In the opinion of scientists, the source of the gas could be bacteria-like organisms.
However, they have cautioned that they do not know what caused the spikes that followed studies of gas samples by Curiosity's Tunable Laser Spectrometer (TAS) – this instrument uses light to carry out chemical analysis.
It is understood that the instrument initially recorded low levels of methane, which then spiked 10-fold over a period of 60 Martian days. The spikes were recorded within 200 and 300 meters of each other, and within a kilometer of where the lower readings were recorded.
Scientists believe that the low background level of methane can be explained by the Sun's rays degrading organic material possibly deposited by meteors but, the spikes of methane could mean that there are possibilities of an additional source – and, it was unlikely to be caused by the impact of a comet or asteroid.