How would you know if aliens exsist on mars if youve never been there? Scientests say earth is the only planet that could support life, but they might have adaptations that we don't. Who knows, maybe to people on other planets, our planet couldnt support them, so they live on mars. Ever think of that, smartie pants?
I think they might because through evolution, instead of oxygen to keep their bodies going, they could inhale carbon dioxide and exhale oxygen ex, plants. You never know what kind of environments may suit an alien. They might be so advanced that they are disguising their planet and we are searching on mars for no reason what so ever, they might even be living inside of Mars, or Mars may have been unsustainable for life to continue, so they expanded out into space. You never know.
There once was life on Mars long ago when Mars was more earth like millions of years ago and had water. Though there is no evidence that there is life on Mars alive today. At least no any discovered life....
No, but there was a really close call that Marsians do excist, "the Marsian Face", this was reported by Nasa in the 1980s, but in between 2000 and 2004, they found out it is only a Muntain, not a face of a Marsian
