ALIENS ALIENS!! evolution vs creator beings?

Possible?

Yes

Likely.... no. Its simpler to posit abiogenesis here, than abiogenesis + evolution to a technological species, culminating with interstellar travel 4 billion years ago.

@ larry

"The idea that some alien species came here and "seeded" the planet is commonplace and indicates the ignorance of the vast majority of humanity concerning the inconceivable distances between stars."

I'm going to have to disagree with you. In theory, a fusion powered spacecraft could acheive speeds in excess of .2c. Then other possible technologies like antimatter propulsion or Bussard Ramjets could get your ship up to about 0.5c.

The galaxy is 100,000 ly across. A civilization possessing fusion drives could theoretically colonize the entire galaxy in under 2 million years.

2 million years is nothing ... life on earth has been here about 2,000 times longer than that.

However.... it took nearly 4 billion years to get from the first cells to us... Lets say in the cosmic timescale, our time to fusion is imminent. If another species followed a similar path, that means their evolution had to start about 4 billion years before ours... 8 billion years ago.

If the galaxy is only 13 billion years old, that leaves only 5 billion years for there to be enough cycles of star death and birth to produce enough heavier elements for that "progenitor" to evolve, ie 60% the time it took our sun/solar system to form.

I can't say for sure, but I'm going with not possible (of course, their evolution could have proceeded faster...)

Nonsense.

If you think that life was introduced to Earth from some other location, or seeded by "aliens," then all you have accomplished is to move the point of origin of life to some other location. You still need to explain the <<beginning>> of a viable life form. If we say "It must have happened elsewhere", then we remove incentive to investigate, explore and experiment to find a mechanism for origin here, on our own planet.

That is useless. Science seeks information, answers, knowledge based on facts and evidence supported theories. To say that aliens did it, or that a "god" did it, is an answer the promotes and prolongs ignorance.

The idea that some alien species came here and "seeded" the planet is commonplace and indicates the ignorance of the vast majority of humanity concerning the inconceivable distances between stars. That's the first misconception. Secondly, it doesn't explain the existence of other life forms. Did these same aliens bring all the other species with them too? Finally, who "seeded" the planet from which they came?

Evolution negates the necessity of our, or any other living thing, being dependent upon an external source.

Genetics proves that we are related to every species on Earth - in the case of the great apes (not monkeys - PLEASE - I'm quite happy to acknowledge our relationship with monkeys but it's not as close as our cousins the chimpanzees) we have around 99% of our DNA sequence in common, which means that we have common ancestry less than a million years ago with the chimpanzees... we are even related to the oldest living organisms that appeared on Earth, like the green mats of algae that still cover many still waters of our mother planet.... Any involvement of aliens is unnecessary...

Fossil evidence shows evolution on this planet of all its life forms. no ETs have ever visited the Earth, so they could not create us. It is absurd to claim ETs created us, regardless of how poetically it is expressed. Science and Logic take priority over flowery phrases.

Yes, we are the children of ancient alien anal-probers

Assuming something you'd like to think on the basis of

absolutely on evidence what-ever.

How is that different from any other religion?

Somebody watched "Prometheus".

Or "Ancient Aliens". Hard to tell which.

I have read a site in which a scientist was telling that aliens might have created us to worship them......I feel what you sad is true .. Then it means gods who we worship is aliens!!!!!!

No. Check out: http://en.wikipedia.org/wiki/Panspermia

There is already a well developed theory as to how life originated on Earth, in "white smokers hydrothermal vents", at the subduction zones of tectonic plates in the oceans. They produce honeycomb like structures, *many of which are open, and cell sized, as well as an alkaline chemistry, a reliable source of biochemical energy and molecular "building blocks", and a temperature gradient; ideal conditions for simple, imperfectly self reproducing molecules to form.

Check out: http://www.google.com/search?q=white+smokers+hydro...

The more efficient self replicators came to dominate, and due to imperfect self replication, the process of evolution came to operate, producing more complex, superior self replicators, and eventually produced the more stable RNA, and Earth became an RNA world. Later, DNA evolved from RNA, and, being even more stable under various conditions, became the basis for most life forms today. Semi-permeable cell walls (possibly involving* ) protect the reproductive process, yet enable the passage of useful molecules, so are positively selected for in the evolutionary process. Check out: http://www.google.com/search?q=first+eukaryotes+ev...

about the evolution of multicellularity from unicellularity. One version of the theory from there is that stromatolites and sponges evolved. Some sponges evolve reproductive spores. Some types of spores later elongate and undulate slightly, enabling mobility, leading to primitive, fish like organisms, which evolve cartilage based backbones, like sharks and rays. Another version puts flatworms in the process. Photosensitive cells provide a simple sensorium; see http://www.google.com/search?q=eye+evolution+the+b... Calcium based backbones evolve in the first true fish. Some types evolve four lobed fins below, which they use to navigate weed blocked channels, and/or seek shallow water to escape larger predators:

"Fishapod" reveals origins of head and neck structures of first land animals. Newly exposed parts of Tiktaalik roseae--the intermediate fossil between fish and

the first animals to walk out of water onto land 375 million yrs ago. news.uchicago.edu/.../fishapod-reveals-origins-head-and-neck-structures-first-land-animals

http://www.google.com/search?q=first+land+animals&...

First amphibians > reptiles > mammals > prosimians > primates > (possible pathway) Ardipithecus Ramidus ( http://www.google.com/search?q=ardipithecus+ramidu... ) > Australopithecines > Homo habilis > > > modern humans ( http://www.talkorigins.org/faqs/homs/species.html & http://en.wikipedia.org/wiki/Human_evolution ).