From were did life start from? From water or from sun light,
2007-02-23 05:00:49 · 16 answers · asked by bu2678 1 in Science & Mathematics ➔ Astronomy & Space
A lot of people think we are alone in the Universe. If this is true, it would mean that you and I are nothing more than flukes of nature. Personally, I don't like thinking I'm a fluke -- a mistake by nature. I think we were created by God.
A lot of people think we are alone in the Universe. I don't think this is true. After all, if God is powerful enough to create the Universe, would He not also be powerful enough to create and look after other Life in the universe, whatever shape, form or fashion He gave it? (Just because we can not, or do not see "it" doesn't mean "it" does not exist.)
But in the end, when we die, then we will know the Truth, whatever it may be.
2007-02-23 05:15:16 · answer #1 · answered by pinduck85 4 · 0⤊ 0⤋
Where did life start from? That's the main question, isn't it? At some point, some molecule came together that had an automatic way to replicate itself. Ever since then, all life development has been the result of reaction to the environment. But we don't know how that primordial molecule formed, or how common the initiating event might be in the universe. If we knew these things, we could better predict how likely life is in other parts of the universe. But we still wouldn't know for sure until we saw direct evidence of the life itself.
Given an effectively infinite universe of effectively infinite diversity, the odds are very good that there is life elsewhere (barring the rarity of that initiation event). But if there is, how frequent is it? Would any of it be close enough to us for us to find it? If we were to find it, would it have arisen, developed intelligence and civilization and eventually died out a few million years before we could have met it? If it starts with a molecule, could it have developed in a way that we couldn't recognize it as life?
We don't even know how optimal conditions are for life. Earth life can grow in some nasty places, but it grows better when the light, heat, gas and radiation are in certain configurations. The planets we've been able to detect so far don't fit the standard profiles. How many do? How relevant are the profiles?
It all comes down to direct observation. We have to encounter a life form that we didn't inadvertently bring along with us. We may even see changes to the surface of a planet that can't be explained by any but "biological" reasons, but it's only an indicator, not confirmation. (Seasonal surface changes on the Martian surface once gave rise to the speculation that dying Martians had built a canal system to shepherd their dwindling water supply, but it turned out to be an illusion.)
The odds are neither good or bad. They are unknown, until we learn more. We are alone, until we are not.
2007-02-23 13:53:07 · answer #2 · answered by skepsis 7 · 0⤊ 0⤋
We are definitely not alone in the Universe. The Universe is just too big of a place for Earth to be the only planet with life on it. Life started in water after amino acids came together.
2007-02-23 13:32:37 · answer #3 · answered by bldudas 4 · 0⤊ 0⤋
No one knows. It is possible there is life elsewhere in the universe but it has not been detected (yet?).
No one know exactly how life started either. It would not have been from only water or only sun light. Likely a combination of sunlight, water, various organic chemicals.
2007-02-23 13:06:14 · answer #4 · answered by Joan H 6 · 1⤊ 0⤋
No one knows whether there is life anywhere else, but I can't imagine that this little insignificant planet around a very average sun is the only place in the entire universe which has life.
If you look in any good modern biology book, you'll find hypothetical explanations of how life might have arisen on earth.
2007-02-23 13:05:27 · answer #5 · answered by hcbiochem 7 · 0⤊ 0⤋
There are BILLIONS of stars in our milkyway galaxy alone, the majority of which probably have orbiting planets, thus, there are billions of chances for life to exist on these planets as well.
and, with the recent findings over the past decade alone, we have found that life is more amazing and unexplainable than we thought, it can take many forms, an almost infinite ammount of species.
logic would dictate that there in undoubtedly life on other planets. we would be selfish and foolish to believe we were the only ones.
the chance that theres life (intelligent or not) in our own galaxy is vast, and there are more galaxies in the universe than there are stars in the milky way.
as for aliens coming to earth, that is an entirely different story.
they would need to be extremely intelligent to create faster than light propulsion systems or the self-sustaining spaceships that can cross the millions of lightyears of space in the universe.
to put things in perspective,if you had $1 billion and spent $1000 a day, it would take 2,740 years to spend. thats ONE billion, we are talking about numbers in the trillions...
the nearest star to our solar system is 4 lightyears away, meaing that even if we could travel at the speed of light, it would take 4 years to get there. the ship would need to be able to sustain itself, and our attempts at self-sustaining bio-domes have proven un-economical at best.
2007-02-23 13:11:55 · answer #6 · answered by sobrien 6 · 0⤊ 0⤋
None have yet been discovered.
Of course it is possible.
The ultimate origin of life is the stuff of speculation and hypothesis.
Our understanding of life as a carbon-based physico-chemical phenomenon means that water and heat are required. That does not preclude some other basis of life. However, the thing about carbon is that its unique chemistry allows for orders of magnitude more combinations that for non-carbon compounds, under a wide range of conditions. This variety is critical to our understanding of biochemistry, molecular genetics, enzyme function, and cellular physiology.
2007-02-23 13:42:36 · answer #7 · answered by Jerry P 6 · 0⤊ 0⤋
Of course there are other life forms somewhere else, there are billions of galaxies with billions of stars and suns and billions of planets within these billions of galaxies, which almost makes it a mathematical fact that there is life out there.
As for the 2nd question Life did not star from water or sunlight.
2007-02-23 14:38:29 · answer #8 · answered by Anonymous · 0⤊ 0⤋
chemically, it's impossible for something as simple as even archaebacteria to form. Simple protein molecles, under the most ideal circumstances, given infinite amounts of time would still need to form properly, with a genetic code that sustains life and THEN would need a form of replication and on and on and on...
Evolution is such a horrendous fairy tale for people who desperately want to take God out of their lives. I began as an athiest and evolutionist... but it made less and less sense the more i knew, and with my advanced science understanding... it truly HAS to be "intelligently" designed. Physically, Mathematically, and every other way proves the existance of a Creator... you just have to study life and inorganic to see it.
2007-02-23 13:07:20 · answer #9 · answered by Anonymous · 0⤊ 1⤋
the universe is huge and the chances are comparable.
It`s very possible that in this universe to be other kinds of exisstence, not just the life forms that we are used to!
2007-02-23 13:04:08 · answer #10 · answered by Vlado 4 · 0⤊ 0⤋