Is it possible that there is some manifestation of life on Mars that we humans cannot even perceive.?

Question

Basically, being human beings (from planet earth), may be we are trying to look for which we cannot even perceive. Is it one of those cases when we search for something with a preconcieved notion (that it looks like this or have this kind of molecules etc), so even though that thing is right there in front of us, we just cannot notice it ?
Any views ?

Answer 1

Is it possible...?
The easy answer is Yes:
1) we have not looked everywhere (positions, depths, etc...)
2) we have not looked for all the possible manifestations that we can perceive, only for some telltale signs of some manifestations.
3) we have not looked for all theoretical manifestation that we can think about, even the ones that we could not perceive with the instuments that we can send to Mars.
4) we have not looked, obviously, for manifestations that we would not recognise as life.

Answer 2

1

Answer 3

You are on the right track, I think, because from the beginning, scientists have been looking for life based on what they know about life examples here on earth.

We have to have an oxygen based atmosphere to live. Actually, it has been established that the way we process oxygen is pretty unique since we had to make some radical physiological changes just in order to breathe.

Who is to say what may have evolved "out there" that doesn't require oxygen at all, rather, their lifeform requires ammonia-rich atmospheres in order for them to survive.

It may go against all the rules of science that these lifeforms exist, but on the grand scale of things, there sure seems like the odds would be in favor of them existing somewhere.

Answer 4

Ever since the Apollo mission to the moon, we've been well aware of life forms that may be totally alien to us. Just watch an episode of Star Trek.

And it's totally useless to look for life that we're not even capable of perceiving. We can only look for basic (water-based) life signs, or "intelligent" radio (type) signals.

That's pretty much the two areas concerning extraterrestrial 'life'

Answer 5

All matters -animate and inanimate having been made up of elements only , there can be no surprise if life exists in any planets or galactic matter as they are themselves made of the elements only and nothing else .