We must look at fact, whatever it is we are seeing today is a snapshot of what the universe looked like in the distant past since the light other stars emit takes millions of years to reach us.
So if light takes millions of years then we are talking longer for any slower means of travel, the closest star to us is Alpha Centurai which with current technology it would take 6000 years for a human to get there.
The current theory of fast space travel is bending space, which isn’t possible to actually do. You’d need a device that could instantly generate the weight of hundreds of stars and then maintain that for the duration of travel.
Also if we look at the Voyager 1 probe it will take approx 28,000 twenty eight thousand years just to reach the oort cloud,
There is no known physics that support a humanoid traversing great distance instantly that would otherwise take thousands/millions of years,
My favorite personal idea about aliens is what I call the “FTL Radio” concept.
Imagine a people isolated in an island which somehow manage to develop the technology to build a radio. First they use it to talk to themselves around the island, but as they perfect better antenas and equipment, suddenly they start picking weirdly modulated radio noise. And then one day they hear a voice on the radio, a human voice: they are in the year 1950 without knowing it, and the world has ignored them and they ignored the world until they developed the crucial technology to speak beyond the oceans.
Imagine that we create a FTL communication system, and while fiddling with it, we accidentally tune into a FTL broadcast from across the galaxy… one of thousands… and we learn that we will never be able to travel “there”, but we can talk to them. The universe never was silent, we just didn’t had the means to listen to it, and they being so far away, they just waited for other planets to cross the threshold while they still existed.
These “nucleobases” — adenine, guanine, cytosine, thymine and uracil — combine with sugars and phosphates to make up the genetic code of all life on Earth. Whether these basic ingredients for life first came from space or instead formed in a warm soup of earthly chemistry is still not known (SN: 9/24/20). But the discovery adds to evidence that suggests life’s precursors originally came from space, the researchers say.
Identifying the wide diversity of extraterrestrial purine and pyrimidine nucleobases in carbonaceous meteorites
The lack of pyrimidine diversity in meteorites remains a mystery since prebiotic chemical models and laboratory experiments have predicted that these compounds can also be produced from chemical precursors found in meteorites. Here we report the detection of nucleobases in three carbonaceous meteorites using state-of-the-art analytical techniques optimized for small-scale quantification of nucleobases down to the range of parts per trillion (ppt). In addition to previously detected purine nucleobases in meteorites such as guanine and adenine, we identify various pyrimidine nucleobases such as cytosine, uracil, and thymine, and their structural isomers such as isocytosine, imidazole-4-carboxylic acid, and 6-methyluracil, respectively. Given the similarity in the molecular distribution of pyrimidines in meteorites and those in photon-processed interstellar ice analogues, some of these derivatives could have been generated by photochemical reactions prevailing in the interstellar medium and later incorporated into asteroids during solar system formation. This study demonstrates that a diversity of meteoritic nucleobases could serve as building blocks of DNA and RNA on the early Earth.
Mineral-laden water emerging from a hydrothermal vent on the Niua underwater volcano in the Lau Basin, southwest Pacific Ocean . The microorganisms that live near such plumes have led some scientists to suggest them as the birthplaces of Earth’s first life forms.
Therefore, all that is needed for life to exist on a planet is ice water and volcanoes as most planets within the habitable zone will be rich in minerals.
Comparing the number of atoms in the human cell has nothing to do with the conversion, because out of all of those 200 billion galaxies, a single planet has more atoms than an average human cell.
How can a human cell be average if you continue to profess there isn’t life in the Universe other than Earth? If Earth is the only planet with life on it, then every single human cell would be unique and not average.
The scientific default is that it is 100% up to anyone claiming the existence of something to prove its existence. For you to go round shouting ’ you can’t prove they don’t exist’ is just utter BS as science doesn’t have to.
Why doesnt science have to prove life on other worlds exist?
To be honest, you might be from the office of AARO, which tries to discount UFO’s because Earth based physics cant explain how UFO’'s are able to travel vast distances in space.
Earth based physics is still in its infancy, too say the least.
I always get a good chuckle over the notion that an advanced civilization conquered physics in such a way that enables them to travel millions of light years in short order just to crash in bfe New Mexico…
Sigh. Showing off your total ignorance of the scientific method again.
If someone claims that unicorns exist, the burden of proof is totally on them to prove that they do. Nobody has to prove that they don’t exist, because the scientific default is that they don’t exist. Plus it is in any case impossible to prove a negative. Only someone utterly oblivious of how science actually works fails to understand this.
So no, I don’t have to provide any facts or anything at all. If you claim aliens exist, the burden of proof is 100% on you to prove they do. That is how science works.
If someone claims bigfoot exists, the scientist can just pack up his stuff and go on holiday to Tahiti and sip pina colada all day long and does not have to do anything…while waiting for bigfoot enthusiast to provide actual evidence.
You got any evidence ? No. I’ll get back to my pina colada until you do.
They dont have to be from other planet tho.
We have like few percent of the record of the species that lived in the past. With less and les record more ancient the life was. It could be these are only humanoid because of convergent evolution, and they dont have much in common with our late mammal lineage, but were here for hundreds of millions of years and they traveled to the future using those ships.
They could have been a strain of protomammal creatures living in forests, where they would not get preserved in stone matter because of acidity of forest soil. Their culture could not support them to get into those preserving soils, and the whole evolution could take like 10 m of years with them achieving the level that made them ruin the natural earth balance, so they left it for other planet, then coming back again. And all the buildings, it all vanished without trace, just look at what our building become after many years of negligence, they turn into dust because of nature and erosion.
You don’t have a clue about the scientific method Altara.
Scientific Method Steps
The scientific method is a step-by-step problem-solving process. These steps include:
Observation. This involves observing and gathering information from a certain aspect of the natural world.
1a. a certain aspect of the natural world involves observing life on planet Earth.
Asking a question. Here, you form relevant and testable questions based on your observations.
2a. based on my observations, is there life on other planets?
Forming a hypothesis. This involves proposing an explanation of how or why the natural phenomenon is happening. It can be an assumption rather than a fact.
3a. Because life exists on Earth and based on discovers of meteorites containing all of the DNA and RNA needed for life to exist on other planets, there is no assumption involving a tiny rock, recently found with all of the DNA / RNA being the only rock with the ingredients for life. Especially since the DNA/RNA rock was discovered, billions of years after the same rock impacted with Earth and started life.
Prediction. This is what you think will happen based on your hypothesis.
4a. Eventually, Earth will discover sentient life on other worlds.
Testing the prediction. With testing, you carry out an experiment to test how accurate your prediction is.
5a. The testing of the prediction is not applicable in this case because in order to prove the test accurate, humans would have to be able to grow the alien life on Earth, which because of the differences in gravity of Earth and alien homeworld, which no two habitable planets in the Goldilocks Zone would revolve, orbit or have the structure of Earth. the results would not be the same, thus testing the prediction is cancelled out.
The most likely line to trace to find habitable worlds similar to Earth would be trace the trajectory of the Life Rock back to the center of the Milky Way galaxy. Any planet that is within a light of the line would then be a potential candidtate for life.
Iteration. This involves looking back on the whole process and the results you achieved to make new hypotheses or predictions.
New predictions would be that since two forms of sentient life had been discovered on Earth and the Alien homeworld, then other habitable worlds would exist.
I could not DISAGREE more with Professor David Kipping. Here is why;
He is placing mankind (Homo sapiens) aka Earth humans as the dominate life form of the entire universe. The other groups who do this also have a strong belief the Earth is flat and/or God made the entire universe for us to play on the only flat planet therein.
His basis of the “odds being too great” to create life is misguided as saying the “odds are too great for life not to exist”. However science has shown Mars use to support life with the Allan Hills meteor containing fossilized microbes from the planet Mars. I place scientific facts over gambling on the lottery any day.
His credibility is in question, I know who the people are in his clip from (2:18 to 2:52) but I don’t know this David Kipping, who received his degree in Natural Sciences at Cambridge University, UK. I also never follow those others blindly, especially since Bill Nye is a mechanical engineer and an actor and not a real scientist.
I am sure of one thing; life exists outside of Earth and we might never meet others in our entire existence as the dominate species on Earth. We might someday get lucky and find more microbes or even multicellular animals on one of Jupiter’s moons. That is only speculation, on my part, but the idea that we are the masters of the universe is completely absurd.
Look, we understand that because the universe is so big there can be an infinite number of possibilities, so based on this there could well be life out there. I’m sure we all have a good understanding of this but we also have to accept there is no proof to support what you are saying.
Until they say “We found an alien ship and a pilot” and they let hundreds of independent scientists verify it. Or NASA can see emitions comming from other planets which definitely indicate life, that is the only time we will have proof.
Until such a time anything we say or present is speculation.
We simply cannot skip the logical process and say what we want, I can literally say anything is true by following your logic and applying it to other subjects. I could say " i can jump as high as a 3 storey building" despite no one seeing me do it, If I don’t jump that high while people are observing then I will not be believed and rightly so.
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