Alien lifeforms are almost 100% sure to exist. There are plenty of planets out there that has liquid water. (most are frozen though as far as we know). I do not believe that there are green men flying around in ships over earth kidnapping people though, that's just nonsense. But in the vast universe a single living organism must exist, or do you think we're forever alone? =)
Well I'm not sure if they exist overall but they definatly do here on DP as some members are completly spaced out.
Of course they do. We are but one galaxy of millions. Each star is just like our own Sun and it's perfectly possible that some of those stars, too far away for modern science to appreciate, have planets like our own Earth.
Well they could but I don't think they can travel threw space because Einsteins laws don't allow it. Light travels at a speed of 186,000 miles a second or 700 million miles an hour. It would simply take to long and use to much fuel to make it to earth.
Its proved anywhere so it might be there we can not predict it. as this universe what we see, may there are more universe we still not able to find out.
If you are existing then why couldn't they? Yes, they do exist somewhere in this endless universe. And they are gonna call us Aliens as its a name given by us to them.
You are correct @logaseo Aliens live in forums . that aliens post stupid comments ....... alien must be read dp forums rules and regulation....