As a Martian is a resident of Mars, according to space probes, there is no life on Mars like the kind of Martian we expect in science fiction. Scientists are still trying to find out if there is any other life on Mars, like microbes or lichens.
If, however, you mean other aliens in space - this has still not been proven - yet.
Mars Mercury martians moon(s)
Probably when the Martians evolve enough technology to venture into space. I'm sure Earthlings will be there well before that, and have messed it up enough so that no other space faring species will even bother.
Yes. Technecly, if you count the miroscopic bacteria that live there
Martians arrive on Earth using advanced spacecraft that can travel through space. They could use technologies like teleportation, wormholes, or faster-than-light travel to reach our planet from their own.
A synonym for martians is "Aliens".
Tell him that he was adopted by Martians but returned because he smelled bad.
There is currently no scientific evidence to support the existence of Martians or intelligent life on Mars. NASA and other space agencies continue to explore the possibility of microbial life on Mars, but as of now, there is no definitive proof of Martians.
In "The Martian Chronicles" by Ray Bradbury, the Martians have 4 fingers on each hand.
There is no evidence to support the existence of extraterrestrial life, including martians, on the moon. The moon has been extensively studied by scientists and no conclusive proof of life has been found.
Butt-Ugly Martians was created in 2001.
Stalin vs. Martians happened in 2009.
That is the correct (capitalized) spelling of the plural noun "Martians."