Within our solar system at the present time, no.
Regarding planets orbiting other stars outside our solar system,
our present technology is nowhere near able to tell.
The likelihood of other forms of intelligent life existing on other planets is difficult to determine definitively. However, given the vastness of the universe with billions of galaxies and planets, many scientists believe it is probable that other forms of intelligent life could exist elsewhere. Ongoing research in astrobiology and the discovery of exoplanets have fueled interest in the search for extraterrestrial life.
Currently, Earth is the only planet where carbon-based life forms are known to exist. However, the search for life, including carbon-based life forms, continues on other planets and moons within our solar system and beyond.
Earth's scientist have not found life on other planets to date.
Archaebacteria are the oldest and most primitive forms of life on planet Earth. It is postulated that primitive life on other planets would be most likely to resemble Archaebacteria. In addition, Archaebacteria were the first life forms to exist on Earth, so studying them allows xenobiologists to postulate how life may come into being on other planets.
No one knows
Water... and a climate that will allows it to exist simultaneously in 3 forms: Liquid, Gas, Solid
At this time we have no evidence of any extraterrestrial life.
Life probably does not exist on any of the known planets (except earth). But if life does exist on one of those planets, it would probably be on Mars. Venus is way too hot, Mercury does not have an atmosphere, and the other four planets are made up almost entirely of gas.
No body knows at this time.
After discovering non-carbon based life-forms at the deepest depths of our own planets' oceans, we are faced with the possibilty that life could exist on other planets even though they might or do possess atmospheres unsuited to the conventional carbon-based forms of life as we know them here on earth
There is no evidence of extra-terrestrial life but it is believed to be very likely.
Not yet, but, as we have discovered water on various planets and moon, the possibility of life - as we know it - does exist.