The Curiosity Rover on Mars is journeying to a huge crater - which has ice in it and never sees the sun so it avoids it's harmful radiation - to find out whether it supports life there. 

Surely, theres SOMETHING out there. No one said it's a so-called "alien". I bet that if we find life, it'll be plankton or a plant.

Alien means "stranger", not big levitating worms that eat the brainz of humans and use telepathy.

I also think the universe is finite, but you could still go in a direction indefinitely, probably coming back to your starting point.

And the observable universe, what we can see from it because of the speed of light, has a radius of 46billion light years (not 14 because of it constantly expanding)

Now we have discovered Europa, a moon of Jupiter, that is too cold, but could have (had) life on it at some point. Europa is from 367 to 600 M miles away from the earth, and that's extremely close compared to the 46 billion light years radius of the whole observable universe, which is itself estimated to be a tiny portion of the universe, assuming that the latter isn't infinite. Even if the universe isn't infinite, there is a near 100% chance to find life somewhere else, and if it is infinite, well there's obviously 100% chance for everything, maybe even another sentinent species that called their planet "The Earth" and are debating about life somewhere else on their Powder Toy forum. (there's only one Simon though)

Also what did the big bang do? some say it created space itself, i mean, void and time. So, what could we find before the big bang? the 4 dimensions did not exist, so basically, even empty, lifeless boring void was not there.....

@hachouma (View Post)

 It's been proved that the universe is flat, but infinite, but I can't remember how. :P

@Sergeant_Starfruit (View Post)

Flat? i thought there was 3 dimensions, how's that possible?

Also, i think it is infinite in the way that you can go in a direction without stopping, ever.

If it was literally infinite, how would it expand?

PS: If you follow the first theory, any point in space is the center of the universe.

@plead-for-destruction (View Post)

 I'm glad there's other believers!

@Blorph (View Post)

 Indeed! I'm quite sure we will find some sort of alien life whether it is plankton or a fully fledged space faring specied within the next 10-20 years, we have come quite far since our first launch so many years ago.

I watched a show on The History Channel about Mayans, building these observatories, but scientists were eager they weren't observing the heavens, they're looking for something else, they suspect "Ancient Aliens" have already landed on Earth, though this sounds highly convincing, most people don't believe it.

@EqualsThree

reminds me of one of the predator (or alien) movies where it shows mayan/aztec (i get confused between the two) pyramids with predator ships landing on them, or stargate with the gou'ld landing their starships on the pyramids... old memories...

Of corse there are aliens. It would be virtually impossible that we are the only beings in the solar system. But there wouldn't be anything like us, technology wise. Most civilizations that may of existed would've blasted themselves to pieces on the discovery of nuclear weapons, or any other powerful weapon like that. So that there are something like us that are looking for signals, looking for peace would be very, very slim. And anything more advanced that us, could be possible, but who knows.