Of course it is. Whatever is out there has adapted to that environment. Just like we have to Earth. We can't go to a random planet like Jupiter and just settle their. It's too cold for what we are used to. Mercury is too hot for us. We have been 'brought up', for lack of a better word, for Earth Conditions. Thus meaning that someone/something else has been on another planet.
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Of course it is!. It would be terribly foolish to think we are the only life form in the Universe, even if only 1% of all the stars in the Universe have a similar 'Earth-like-planet' that still leaves billions upon billions of Planets.
Of course it is!. It would be terribly foolish to think we are the only life form in the Universe, even if only 1% of all the stars in the Universe have a similar 'Earth-like-planet' that still leaves billions upon billions of Planets.
Just check out "Gliese 581g"
Agreed, people tend to lose sight of how many universes and planets we currently know of. I'd say we're very technologically advanced on Earth so that would be the most likely reason we haven't come into contact with any other life forms because we share the same limitations.
I doubt that there is any life form anywhere near as advanced as us anywhere "near" us. There are almost certainly life forms out there, even if it's just single cell organisms.
It is almost statisticly impossible for Earth to be the only planet in the universe that supports life. It would be like winning the lottery 3 weeks in a row. Could it happen, possibly, but it is extremely unlikely.
Think of all of the grains of sand on the Earth, multiply that by ten and that is how many stars they estimate are in the Known universe. You can multiply that number by 2 to estimate how many planets orbit the stars and you get an idea of how big it is out there.
We don't even know for certain if life needs to be carbon based, or have an oxygen atmosphere to support life.
The universe is over 13 billions years old and earth is only 4.5 billion years. The odds that another life form has advanced beyond ours is high as well.
Maybe they have figured out interstellar travel. Maybe not. But one thing for sure there is something else out there besides life on earth.
Time will tell and thats one thing the universe has plenty of.
Think of it like this, when you compare the Earth to the entire universe, we are like a drop in the ocean. To think that we are the only planet containing life, is ignorant.
Now, do I believe that this other life I speak of is the type of aliens we are perceived to believe; green, antennae and space suits? Definitely not. Even if the only other life out there is single celled organisms, it is still life.