are we really the only ones in the universe?

For me my friend nope, I believe there are many more spicies in other galaxies, but all of them are not same us... we are better to all of them... see you around

Statistically speaking we aren't living on the only habitable planet, every star in the sky is a sun and there are infinitely more stars than those visible from earth.A good proportion of these will have planets around them and it is likely one of these will have life it is very unlikely that earth is the only planet with life on it in the universe earth is a mere spec it is unlikely to be unique.

I think it's kind of wild that nobody on here brought up the Drake equation. It was put together by Frank Drake back in the 60's, who was a professor of astrophysics and astronomy, and one of the lead people behind SETI, the Search for Extraterrestrial Intelligence. Its an equation for the chances of how many planets would have intelligent life in our galaxy that we might get in touch with through SETI, and here's how it goes... N = (R*)(fp)(Ne)(Fl)(Fi)(Fc)(L)= ... R* is the average rate of star formation in the galaxy Fp is the fraction of those stars that have planets Ne is the average number of those planets that could harbor life Fl is the fraction of those that actually do go on to harbor life Fi is the fraction of those that go on to have intelligent life Fc is the fraction of that intelligent life which would try to communicate, and L is the length of time that they'd be sending signals into space The most recent equation of this put together by NASA is; N = 7(per year)*0.5*2*0.33*0.01*0.01*10,000 years = 2.31 So, what NASA thinks, is that in our galaxy, there are probably 2.31 intelligent species that are trying to communicate with other planets, right now. Of course, most of those numbers are really based on speculation, and anyone can come to their own concepts with it. Some people even estimate it into the millions or even billions. Try it out for yourself! Dark matter is something else, entirely... it takes up something like 23% of the mass of the universe, and most people think it's what people have said, loose matter that gives off no light, black holes, things like that... but then there's dark energy, which accounts for 73% of what the universe is made up of, for the universe to actually work. It's this whole system of energy that we really don't know much about, but if we're getting the numbers of observation right, then there has to be just loads of that energy, all over the place. The crazy part in the end, is if dark matter is 23%, and dark energy is 73%, that means that the observable universe is only 4% of everything... everything we see and everything we know is just 4%... really makes you think... seems like we still have a long way to go.

Many people are frightened by the idea of other lifeforms out there somewhere. I think it would be much more startling if there were none. We do not have words to describe how vast the visible universe really is. Billions of galaxies, each with billions of stars. Other living things are out there, for sure. 95% of the universe consists of dark matter and dark energy and we don't understand either of them. Good, thoughtful question. Keep it up, Dianne.

For me I'm not sure. At present we know that earth is the only planet that has the capability and having the all the resources to support man in order to live.I don't know much about science but many industrial/advance countries have pool their resources and through the help of their scientist and other talented people try to explore the possibilities if man can live in other planets because our Mother Earth will be over populated any time soon, but this will take time before we may know the answer.

There are definitely many more galaxies with life other than milky way(our galaxy). But the main problem for the discoveries of those galaxies is the distance between these galaxies. It would take us millions of years with the greatest of our technologies to reach the nearest galaxy which isn't practical. Black matter is invisible matter which is present everywhere. It have mass which provides the additional gravitational force required to bind all these galaxies together.

Our earth is not the only inhabitable planet. Several other likely candidates have already been identified and there must be many more in the galaxies which we cannot even see (what we can actually see from our position in space is really only a very small proportion of what we know exists and the planets which we can detect and measure for their likelihood as planets which might support life are all within just a few light-years of us. Inhabitable doesn't mean 'inhabited', of course, and nor does it mean that we humans could ever hope to live on them (any more than we could survive in the Arctic or at the bottom of the deepest oceans where we already know that life exists and thrives). We have no proof that life exists anywhere apart from our own small planet but, on the other hand, there is no proof that it does not and several tenable theories which suggest that life may not have begun on this Earth at all but may have landed here carried by comets or meteorites. The truth is that we do not know but, the more that we begin to learn about things in just our own galaxy ("The Milky Way"), the less likely it becomes that our Earth alone is the only habitable and inhabited planet.

if you look at the sky, each star you see is actually a sun. we can't see even a fraction of all the stars in the sky. just think how many solar systems that is. think how many planets are out there, each turning around their own Suns. how can there not be life on other planets? there are so many of them, there must be some out there that have conditions that support life. we need to consider that just because a planet is uninhabitable to creatures evolved on Earth, doesn't mean they will have no life. just life with different needs than our own. it's very nearly impossible that we are the only planet in the entire universe with life on it. it would be pure arrogance to think that we are the only ones, against all the odds.

Looks like it is 7 to 1 right now in favor of believing we are not alone. Add me to that side. I seriously doubt life out there will remotely resemble us and it is also unlikely we will ever meet any of them. Dark matter is merely matter that we cannot account for (see or detect) but "must" exist to explain gravitational forces we have observed. Personally I think dark matter is just material that has already begun to shrink back down the point where everything was contained in a singularity, before the Big Bang. Someday, billions of years from now, the universe will all be back to the same state as this dark matter and we'll have another Big Bang so the whole process starts over like a 30-some billion year long heart beat.

When you consider all the potential in space, it becomes rather arrogant of us to assume we are the only life form, or the only self aware, intelligent life form. Whether or not any other possible life forms are humanoid or not remains to be discovered, most likely long after I am dust and forgotten, yet what an adventure that would be! As for dark matter and how it works, I doubt even our best minds have that one correctly figured out...or even have a correct name for it! But it is a name that is understood among us, even though it's function is not.

Surely not my friend i am sure that there is other creature out there and hope it's not attacking us coz it really dangerous if we are not well prepare. We should find them first before they find us

it is like saying: there are only Adam and Eve and Cain killed Abel.... where did Cain get his wife??????? nyahahahahaha

it is impossible we are like a speck inside a speck in this universe since we dont know or know less doesnt mean there arent any life forms like hawking said, the substance that spread life in our planet could be from the explosion caused in big bang if thats possible life could exist in more amount even than what we have imagined Purpose of this universe cant be explained, its hypothetical

nope, there are other races out there and the human race is actually a mixture of a lot of alien races. Man is called the microcosm and Universe as is the macrocosm. As above , so below. Whatever you will find in the universe, you will find it compressed in every human being.