As for UFO's ... I do believe there is a dimension that we don't understand. Not sure about little green martians, though.
Mars has global warming, but without a greenhouse and without the participation of Martians. These parallel global warmings -- observed simultaneously on Mars and on Earth -- can only be a straightline consequence of the effect of the one same factor: a long-time change in solar irradiance.
He’d caused the First Native War on Mars, by taking advantage of the fact that at that time human law had not defined the killing of Martians as murder.murray leinster
I get offered so many bad movies. And they're all raging queens or transvestites or Martians.david bowie
The Mars we had found was just a big moon with a thin atmosphere and no life. There were no Martians, no canals, no water, no plants, no surface characteristics that even faintly resembled Earth's.
"And before we judge of them too harshly we must remember what ruthless and utter destruction our own species has wrought, not only upon animals, such as the vanished bison and the dodo, but upon its inferior races. The Tasmanians, in spite of their human likeness, were entirely swept out of existence in a war of extermination waged by European immigrants, in the space of fifty years. Are we such apostles of mercy as to complain if the Martians warred in the same spirit?."H.G. Wells
They are unfettered by precedent in the administration of justice. Customs have been handed down by ages of repetition, but the punishment for ignoring a custom is a matter for individual treatment by a jury of the culprit’s peers, and I may say that justice seldom misses fire, but seems rather to rule in inverse ratio to the ascendency of law. In one respect at least the Martians are a happy people; they have no lawyers.Edgar Rice Burroughs