are we alone? do you feel that life exist on another planet or galaxy ?

Answer 1

If you are asking about microbial or plant life, I believe that it is likely that it exists somewhere besides Earth. We know now that there is almost certainly water on Mars. I think that in the next five years or so we will have proof of microbial life on Mars.

If you are asking about sentient life, that's another question entirely. So far we've seen no verifiable evidence of other sentient species. That said, I believe with some certainty that somewhere in our galaxy at some past, present, or future time, a sentient species did/does/will exist.

Why haven't we heard from them?

Perhaps they are not technologically advanced enough to be heard. They may be mastering stone knives right now, or experiencing their own Rennaisance.

Perhaps they are here right now. Any species sufficiently advanced to travel interstellar distances would be able to hide or masquerade with ease. That Boeing 737 that just flew by may be a surveillance craft.

Perhaps they are so far away they will never notice us and vice versa.

Perhaps they existed a million years ago and died out.

Perhaps they will exist a million years from now.

It is really impossible to know for sure.

The Drake Equation suggests that there is sentient life out there. The Fermi Paradox casts doubt. Play around with the calculation form at the second link and see what you think.

Answer 2

Yes i strongly believe in life on other planets. We may not have discovered life thanks to : 1. the life could be microscopic to the eye 2. extinct, meaning there possibly was once life or 3. our definition on life only surviving in a hydosphere like earth and holding oxygen is a bunch of crap.

I think that maybe life on other planets possibly survive in another type of atmosphere, maybe the creatures dont need water and oxygen like us.

perhaps they live in the crust of the planet and not on the surface.

so, i'd say, lets all not jump to the conclusion that life can only survive on a planet that is like earth.

Also, scientist have found a planet outside the Solar System that is much like earth and can sustain life, perhaps the life on that planet hasn't been discovered because it is in the oceans.

We discover new oceanic life nearly everyday on Earth, think of those as Aliens to humans. So perhaps one day, we will find life on another planet. After all, the Universe is Gigantic and we havent even seen half of it yet.

Answer 3

We have estimated that there are hundreds of billions of galaxies in the universe, and the average galaxy contains hundreds of billions of stars. So it's highly unlikely we're the only intelligent life. However, since the distances are so vast, it's also highly unlikely we were, or ever will be, visited by aliens, although perhaps we'll receive a radio signal some day.

Answer 4

NASA and the european abode business enterprise did a blended challenge to extremely one in each and every of Saturns moons, Titan. The Cassini area probe which carried the Hyugens lander. They sent a probe down (Hyugens) to the exterior. What they got here across became into as quickly as, varieties of amino acids, which from my comprehend-how, are the construction blocks of existence! And the only reason that existence has now no longer developed on Titan is thinking the certainty that it is too chilly! If there's a hazard of a minimum of two areas with existence in our solar technique, then in the remainder of the universe? dazzling to now no longer produce different existence. Mars is likewise thought to have in any case in the previous harbour existence. besides the undeniable fact that with the magnetics all screwing up, then our environment is obviously being shaved off by potential of the cosmic rays from the solar. additionally, the posibility of developed existence (better so than us) in our universe is extremely probably. Our universe is suspected to be around 13 billion years historical. Human civilisation is onl approximately 50 thousand or much less, human beings are in many cases older than 2 hundred thousand. evaluate approximately how a techniques weve are available the final 2 hundred years, then stick to that to the achievable BILLIONS of years that different existence has had to evolve! Whoa!

Answer 5

Well, in theory yes, we are alone in this universe, we are the only planet with life on it as of now, but maybe our sonars are not as advanced as the aliens that live maybe 10 feet away from us and just have a cloaking device, and no im not talking about mexicans

Answer 6

I'm assuming you mean intelligent life. Of course, the existence of "life" is probable, if you are speaking in terms of microorganisms or other such life. "Life" such as we know it (our own human existence) seems less probable because of the unique conditions of our earth, its evolution, our evolution, our distance from the sun, etc. The existence of intelligent life has always intrigued me, and I have to say that I'd like to have faith that other intelligent beings exist. It is hard to believe that in the vast expanse of the universe, we are somehow "alone".

Answer 7

The universe is too large for me to think we are the only planet with life.

Answer 8

I have always believed that in this vast galaxy it would be silly to think that we are the only intelligent life.

Answer 9

Wow, I'm not sure. But I think it's totally possible. I think we may have just not discovered them yet. Maybe another species out in space is thinking the same thing.

Answer 10

absolutely yes. there are too many solar systems and a mind boggling number of plants in the universe.