Life outside the Earth

[cpvr]

What does everyone think? Do you think there's others like us out there? Do you think there are some worlds out there - excluding earth with possibly humans, aliens, or other type of space-things.

I'm not really sure what to think, but I guess if we have Earth, then there's has to be something else out there, but we will only know if the truth every comes out[if there is].

So, do you think there's life outside of the planet Earth?

[jakdacrowe]

Definitely. The universe is constantly expanding. I've heard of planets having the optimal conditions on sustaining life.
I don't expect them to look like us. I don't expect them to higher or lower technology than us. I dunno.
But since there's a planet like Earth, there's bound to be a few more bazillions out there we haven't discovered or heard about.

c: We're not alone!

[VanipetiLover]

Well If there are, I wish it wouldn't SUCK our brainz.

[UlyssesBlue]

Our planet is located within a solar system in which there are at least a dozen planets, dwarf planets and planet-sized moons, plus about 160 various other moons and counting. Of these, several have been found to posses water, hospitable temperatures and other essential ingredients for life.
Our solar system is located within a galaxy in which there are anywhere from 200 to 400 billion stars, and potentially just as many planets, with an estimated 10 billion of these within the habitable zone.
Our galaxy is located within a galactic cluster in which there are at least 54 galaxies, of which the Milky Way isn't even the biggest.
Our galactic cluster is located within a supercluster, in which there are at least 100 galactic clusters, of which the largest is estimated to contain up to 2000 galaxies.
Our supercluster is located within a galactic filament, in which there are approximately 60 superclusters. This is the second largest identified structure in the observable universe, measuring about 1 billion light years long.
Our galactic filament, and everything we can observe is located within what is known as the observable universe, which stretches 46 billion light years in every direction, with potentially much more beyond. It is estimated to contain over 100 billion galaxies.

Our universe is bigger than we can possibly imagine, and contains more stars and planets than we are capable of comprehending. Faced with such dauntingly large scales, it is unfathomable to ask ourselves, "Are we alone?" What we should really be asking ourselves is, "How can we possibly be unique?"

[Corleone]

Thinking about space really puts things into perspective for me, it makes me realize how small and worthless we really are.

[Encode]

Thinking about space really puts things into perspective for me, it makes me realize how small and worthless we really are.

It's funny, when I think about things more holistically like this, it makes me feel much more comforted.

Neil DeGrasse Tyson sums up my thoughts on the matter pretty well:
“Recognize that the very molecules that make up your body, the atoms that construct the molecules, are traceable to the crucibles that were once the centers of high mass stars that exploded their chemically rich guts into the galaxy, enriching pristine gas clouds with the chemistry of life. So that we are all connected to each other biologically, to the earth chemically and to the rest of the universe atomically. That’s kinda cool! That makes me smile and I actually feel quite large at the end of that. It’s not that we are better than the universe, we are part of the universe. We are in the universe and the universe is in us.”

[Kiara]

I wouldn't doubt it at all, but I really don't think anything out there would be like us. I think it's weird even that scientists say life can only exist if planets are like ours... what if there's a lifeform out there that doesn't need anything we need? No oxygen, water, etc. Just because our "life" needs certain things doesn't mean that all life in the universe would need the same conditions, unless I'm missing something here...

So I believe there's a possibility for "life" in some form, though I'm super skeptical about ~aliens~ like media pictures.

[UlyssesBlue]

@Kiara
You're quite correct. Scientists studying life on our own planet are constantly revising the known requirements for life in general. The most recent thing to turn everything on its head was a discovery of bacteria which flourished on arsenic. There's also been others found to live in extremely acidic or extremely alkaline environments, under temperatures hot enough to boil water, and a variety of other extreme conditions that we wouldn't have a chance of surviving ourselves. What this seems to be telling us is that life is very persistent, and even the most inhospitable places may be able to support life.

If you're interested, look up 'extremophiles'.

[cpvr]

Thinking about space really puts things into perspective for me, it makes me realize how small and worthless we really are.

it really makes me wonder because how big Earth truly is. And in fact, I can't wait to see what Nasa finds on Mars.