Most of what we know about viable Biology indicates that temperatures and atmospheric pressures be within a range where liquid water is possible. That is not to say that life cannot exist under other conditions, just that we don't have much information about how any kind of complex life could function in other environments. While Mars is definitely colder than Earth and has an extremely thin atmosphere compared to Earth, it does fall within the range that we would consider habitable - thus Mars might be considered a viable location for living organisms alien to Earth to inhabit. The other planets in our solar system have surface conditions that we do not believe could sustain any kind of life as we now know it; for example, Venus is extremely hot and has an incredibly corrosive atmosphere. Jupiter is a gas giant with extremely cold temperatures at the outer edge and crushing pressures and extreme temperatures deeper in. The other planets are even less hospitable so by comparison Mars looks like the best prospect for alien life within our solar system.
To see the way we live, or destroy us.
No. There is no evidence of life on Mars.
It is possible, but no one knows of any such planet. We don't know if there are aliens. Someone has to be the first form of intelligence in the universe, and there is no reason to think it isn't us.
Maybe. It is a cold planet. Aliens would have to adapt but could live there. It is -125 to 23 ° Fahrenheit. If there were aliens, which there might be, they might want to buy it because you would be able to jump 3 times as high on Mars as you can on Earth. I would want to buy it, but I would pack, like, really WARM clothes. Haha.
There are no confirmed sightings of extraterrestrials, yet. When we first establish contact with an extraterrestrial species it will most likely be through radio waves. The reason is that it is vastly cheaper and faster to broadcast radio than it is to send a space craft directly. "Grays" are most likely figments of over active imaginations--hypnotic suggestions.
No. Rigel is a star. Any aliens would have to live on a planet.
aliens live in space
the only way for aliens to live on Neptune is they have to be able to survive on a planet like neptune. it wouldn't be a very good choice unless the could live on a freezing and mostly gas planet.
Probably because Mercury is the closest planet to the sun making it temperatures of up to 430 degrees Celsius and if aliens were to live there they would probably freeze to death if they came to our planet.
aliens
To see the way we live, or destroy us.
No. There is no evidence of life on Mars.
Aliens probably do not live in America,but there is a chance aliens could be hiding. It would make no sense if our planet was the only planet holding life. There must be a planet out in all of the space in the universe. If you are really actually interested in space and not pulling my leg,than try just looking at the stars. If there is so many stars,which are all other suns,than why wouldn't there be at least one planet with other life forms.
we are aliens too ^_^ ,, because aliens live on other planets,, we live on our planet,, if we call those other creatures on other planets an "alien" ,,,,, we are the same as them,, if we travel to their planet,, they call us back aliens too ^_^,, in their language hahaaha i guess that was the best answer for aliens theory
All Pokémon are not aliens, they are native to the planet on which they live. Humans and Pokémon live side by side on the planet, they always have. Now there are a few exceptions:1. Clefairy2. Lunatone3. Solrock4. Jirachi5. DeoxysThese Pokémon mentioned above came from outer space (aliens) and some stayed to live on the planet while some visit for a short time (eg. Jirachi and Deoxys)
It is possible, but no one knows of any such planet. We don't know if there are aliens. Someone has to be the first form of intelligence in the universe, and there is no reason to think it isn't us.
It is a cold planet. Aliens would have to adapt but could live there. It is -125 to 23 ° Fahrenheit. If there were aliens, which there might be, they might want to buy it because you would be able to jump 3 times as high on Mars as you can on Earth. I would want to buy it, but I would pack WARM clothes. Lolz.