|Possible Martian microbial life?|
How might we find it? There are a few select ways. We might discover a fossilised sample in a meteor fragment from another planet, that has arrived on Earth itself. This possibility almost happened in 1996 (Click here to read more on the NASA website), when tiny worm-like shapes were found in what is thought to be a sample of Martian meteorite. However, the question of contaminated samples soon arose, as well as the suggestion that the shapes could have occurred through natural processes. New techniques recently put to use, suggest the existence of chemicals which could indicate the signature of life, thus strengthening the case for the worm-like shapes once again.
|3D representation of a Mars Rover|
It seems unlikely that'll we'll find something like this anywhere else, though. We just haven't been sending out enough probes to the other planets and their moons, with the ability to investigate at this level. There have been a few others with potential, though.
|The surface of Titan|
The drawback with a discovery of this nature, is that it still leaves a lot of the doors open. For those interested in the subject of alien life, it would be of enormous import. It is a discovery that would make the headlines, and alter our perspective on the likelihood of life having evolved elsewhere in the universe. Unfortunately, it wouldn't make much difference to the everyday populace. The world would go on as normal. Proof of intelligent life is what will make the big change.
Next, we shall discuss 'Remnants And Artefacts'
Click here for:
Part 1 - Equations and Paradoxes
Part 2 - Signals from Beyond
Part 3 - Something Small
Part 4 - Remnants and Arefacts
Image Credit: NASA - http://www.nasaimages.org
Some text modified from my previous article 'NASA Announcement - Possible Proof of Life Out There?'
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