Percival Lowell felt that the canals on Mars were indicative of the engineering efforts of an advanced civilization .
We now know there were no canals; they were an optical illusion. But it is thought that Mars might have some microscopic life forms, as there is water and carbon available, the basic building blocks of life on Earth.
Percival Lowell, an American astronomer, popularized the idea that there was life on Mars in the late 19th and early 20th centuries. He believed that the Canals of Mars were evidence of an advanced civilization, but later observations debunked this idea.
Actually not exactly... They think MARS can have life. They found WATER on mars, so, no, Earth might not be the only planet with life.
It is not have been prove yet, but scientists think there might be a chance of life in the planet Mars.
I think it might be Mars... or maybe Europa.
There is no clear trace of life on Mars, although there have been some observations which might or might not be connected to some kind of microbial life.
It's very doubtful, there is no life on Mars (as we might know it).
Because Mars does not have an atmosphere suitable for human life.
it was either mars or earth i think it was mars
Strong evidence that plant life exists on Mars was advanced today by Earl C. Slipher, American astronomer, after observation of the planet, which is closer to the earth this month than at any time since 1924.
The atmosphere on Mars does not support life so no a hippo can not live on Mars.
well...... we can't say yes but also not, if NASA ever launch a manned mission to mars might simple plants can be seeded and might be the start of life on mars and if the NASA did not launch a manned mission to mars might be not but human civilization can survive on mars so if earth ends mars should be seeded with life because it contain all condition for life to exist and in these day one more way of life on mars NASA spacecraft can can increase green house effect on mars so with these if it rain on mars than anyway there can bacteria exist and other life forms
mars has liquid water on it