Methane Spikes found on Mars could suggest Extra-Terrestrial life

http://www.dailymail.co.uk/sciencetech/article-2876373/Do-finally-proof-life-Mars-Unexplained-methane-spikes-suggest-bacteria-living-red-planet.html

Methane spikes detected by Curiosity could be the result of bacteria on the red planet. Assuming that it's not non-biological, the big question is then, has the planet been contaminated by this and previous missions or is this the first sign of alien life?

All very interesting and since Venus, Earth and Mars all had water at one point there's a decent chance they all had microbial life.

Personally i think Titan is actually the best bet right now, it's been identified that in addition to liquid oceans (Methane) it has all the ingredients required for DNA and RNA.

What about europa

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All very interesting and since Venus, Earth and Mars all had water at one point there's a decent chance they all had microbial life.

Personally i think Titan is actually the best bet right now, it's been identified that in addition to liquid oceans (Methane) it has all the ingredients required for DNA and RNA.

Certainly more likely that it's life more similar to our sea life but there are some concerns with Europa. Namely that if all the ocean is under the surface then are there are any currents. If there are no currents then how will the production of Hydrogen Peroxide be prevented (i think that's the chemical) since it's believed that this is what caused the death of 90% of species around 500 million years ago.