Because there is none to find.
There has been no evidence found that there was ever life on mars.
Yes.
No life has been found on Mars as of yet - and no intelligent life exists there. As such, there are no alien houses on Mars.
Life hasn't been found on Mars yet, and no one knows if it ever will.
Strong evidence or half-life has been found on the planet Mars.
There was no life on Mars.But from resent discovery there was a (beetle) in 2009 living, but the bug was reported after 5 days dead.That was the life on Mars. In actual fact, no life, beetle or otherwise, has ever been detected on Mars. The media report that a fossilized microorganism was found in a Martian meteorite found on Earth, was not confirmed-- it could have been something unrelated to life.
Europa and Mars
Europa and Mars
Because almost everywhere water is found on earth, even in very extreme conditions, life is also found.
So far we do not have definitive evidence that there was life on Mars. However a piece of Mars that fell to Earth as a meteorite was found to contain structures that some people interpreted as fossil bacteria. This interpretation has not been accepted as definitive.
If life is found on mars there is a 98% chance that there microscopic.
Europa and Mars