Do you think Aliens exist and have a safe method of space travel between stars or even galaxies?

Question

I assume that you will explain why you think what you think.

Answer 1

I believe it is possible. Just because our physics doesn't cover travel faster than the speed of light does not mean that it is impossible. Scientists declare everything impossible until it's done. There was a lot of flack about the dangers of traveling at the speeds the first trains achieved. I'm sure if we ever figure out how to travel that fast
and ergo that far, we will figure out how to survive it. If there is other intelligent life there may be some from civilazations much older or smarter than us. So they could have done the math.

Answer 2

If aliens exist, they are so far away you might as well say they don't exist.

From what we know about our own solar system, it's a safe bet nothing living comes from there. The environments are too hostile. Yes, there are some THEORIES that life could evolve in all kinds of off-the-wall conditions; but it's all very far fetched and doesn't have any empirical evidence behind it.

For someone to travel from another galaxy, you're talking about going LIGHT YEARS through space! Think about it. Light travels 186 k miles per second. You can just visualize what the distance it goes in a year is like. It's not likely anyone, advanced or not, could travel MANY LIGHT YEARS through anything.

Answer 3

It's certainly a possibility! The universe is vast... so vast that it would take light over 300 billion years to go from one side of it to the other... and within it, there are billions of trillions of stars. To coin Carl Sagan, if only 1 in a million stars had planets, and 1 in a million of those planets had life, and 1 in a million of those lifelorms were intelligent enough to have a space faring capabilities, then there would be billions of space faring civilizations in the universe...

So why no visitors? Well, as far as we know, the universal speed limit is 3.0 x 10^8 km/s... the speed of light. No matter can ever reach that speed... and like I said, the universe is vast... and considerably young compared to it's size... 14.3 billion years. Humans have existed for only a few hundred thousand years... The Earth itself is only 4 billion years old. It's possible that many aliens have come to Earth millions or maybe billions of years ago and found nothing of intrest here and moved on. If they were to make a another trip, it would probably be millions or billions of years from them...

Answer 4

Before one can answer your question, it is necessary to define and agree on some terms. Can we agree on the following?
Allien = Life form which has it's origin outside of planet Earth.
Safe method = A means of begining and ending a voyage within the lifetime of individuals (terrestial or alien), or successive generations of individuals who are able to arrive at the end of the voyage alive.
If we agree on these terms, the first part of your question is relatively easily answered.
Considering the fact that there are billions of galaxies and in our small galaxy (Milky Way) there are billions of stars and many of those stars have planetary systems, and assuming that we are referring to life on some of the sextillion existing planets, there can be no question as to the existence of life on many billions of planets. Since our sun is a relatively young star, there can be no doubt that some of the life found on some of the older planetary systems are, due to their longer span of existence, more advanced than is the life on our insignificant little planet. There can be no doubt that many of those life forms are able to travel to other stars.
The answer to the second part of your question,
Our space program is a trifle over half a century in the making. In planetary terms less than the blink of a terrestial eye. We have yet to put a human on any of our neighboring planets but we have sent out interstellar probes. Our life form (homo sapiens) survives for a very short time (less than 100 terrestial years) and given today's science we are unable to sustain an individual for the duration (thousands of terrestial years) of an interstellar journey. As this is being written, rapid advances in scientific discoveries may belie the former statement. If we don't blow up our home (planet earth) before we venture to the stars, there may come a time when a multigenerational expedition may be sent on an exploratory mission to our nearest neighbor, Alpha Centauri. Alternatively we may develop hibernation (the bears do it) or suspended animation technology, enabling individuals to survive such a voyage.
Since our young race (humans) have such ambitious plans, it would be presumptuous to think that older races by the billions have not accomplished it long ago.
The final part of your question has to do with intergallactic travel.
History teaches us that every authority on every subject who ever said "It cannot be done" has been proven wrong.
There is no way, that we, given our present state of knowledge, can foresee a time when our puny race will be able to travel between the galaxies. That being said, we may want to turn back the clock about 100 years and tell our grandfathers that we will walk on the moon.

Answer 5

As a good God fearing person, I believe it is pretty damned arrogant and presumptions of us to believe that God would create all this splendor just for lil ol' us. On odds alone, there has to be life out there somewhere. I highly doubt they have developed intergalactic travel and visited Earth though.
I have long wondered why it is so widely assumed that if there is life out there it should be a civilization that is far older and far advanced of us. If we are anything to judge the rest of the universe by, the older races destroyed themselves before they could barely get past their own system, let alone buzz some hick in an Indiana cornfield.

Answer 6

I am sorry to disagree with Dellow, but I think there IS evidence that spacemen have been here. I cite both the cave in the near east, a large cave with ancient interior art, and no signs of soot from lighting., and an ancient landing strip on a mountaintop in South America. The cave drawings include a man with a bubble on his head straddling something that appears to be a space ship. The large landing strip was not recognized until air travel was invented. It is too large to be understood from ground level, particularly before people knew about landing strips.
.

Answer 7

Albert Einstein stated that area had a 'p.c. reduce' and not in any respect something might want to go back and forth speedier than mild. yet at the same time, we did communicate rapidly about how the area turned right into a textile and could be bent with adequate mass/gravity. If we are surely being visited by using ETs, then they don't seem travelling on the speed of light (186, 000 miles in line with second) or everywhere close to that p.c.. this may actually kill them and smash their spacecraft thoroughly. that is achievable that they are extreme stepped forward (way ahead people) and they have have a technologies that permits them to BEND area and variety of 'leap' from one position to a unique destination speedier than mild.

Answer 8

No. Aliens may exist, but the laws of physics are universal and render interstellar (or, especially, intergalactic) travel too time consuming to be useful. But, if intergalactic travelers ever arrive here, they will at least have a place to land: the Greater Green River Intergalactic Airport in Wyoming. (41 28 N, 109 30 W.)

Answer 9

In this vast universe, I'd like to think that the possibility of alien life is quite high, however I don't know if they are able to create space travel and travel to our planet at this time.

Still, I'd like to believe that there are aliens out there, gives me hope that I can go somewhere else once this world rots to its core.

Answer 10

There are SO many Satellites orbiting the Earth, by USA and Russia, and a few other countries, there's NO WAY I BELEIEVE ANY "aliens" could get by without being detected. Therefore, No, there are no aliens.