Life on other planet couldn't exist, could it?

Answer 1

Of course it could. Life is chemistry and the ingredients for life can be found anywhere there is chemistry. Asteroids and comets are full of them. Amino acids and other complicated organic substances. So life could arise on any world if the right conditions exist for long enough time which is billions of years.

Answer 2

There is some evidence that there is probably life elsewhere in the universe.

1. The oldest fossils show that as soon as the Earth was cool enough to support life, it did! Whether the life arose here or arrived from external sources doesn't matter. It implies that life-friendly environments harbour life very quickly.

2. Organic molecules (the basis of life) are common in our solar system, in comets, meteorites etc, and we have no reason to believe they are not common elsewhere in the universe.

Note carefully that life does not imply any kind of advanced life. Most of the Earths history contains fossils of microbial life only. Multicellular life is a recent innovation on this planet.

Unfortunately our statistical sample of planets with life currently consists of one only - the Earth. Further research is needed to extend the stats so we can be more confident about life in general in the universe.

Answer 3

It would be the acme of presumption to assume that we are the only life in the universe. Religiously speaking, we do not have the mind of God, and we cannot imagine that he may have tried the same experiment he tried on Earth somewhere else in the universe. Scientifically speaking, the odds are that if life on Earth simply happened due to a perfect mix of chemicals and energy, it could also happen in any one or more of the so-far infinite number of galaxies. And if you have ever left a loaf of bread in the pantry for like even a month, you know that life in the form of mold can exist simply by the presence of moisture and some kind of host material. I would not rule out the possibility of life somewhere else in the universe just because we have never found it.

Answer 4

How do you know it couldn't exist? You can't seriously expect me to believe as mind bogglingly vast the universe is, we are the ONLY planet capable of supporting life. Take a visit to the Official Hubble Space Telescope site. Check out the various photos. See how massive the universe is. Then reconsider your question.

Answer 5

There are at least 100 billion stars in our galaxy alone. The are probably at least 125 billion galaxies in the universe. Now multiply those two numbers together, then multiply by how many planets you think the average star has and you've got a very large number of chances for life to have developed. And seeing how it DID develop here, how hard could it be!

Answer 6

i think its possible because, to me, its very hard to believe that only one tiny little planet in the whole universe can support life, there has to be another planet out there some where that is similar to ours or maybe completely different but supports a different type of life like that doesnt breath oxygen but maybe some other gas. who knows its possible

Answer 7

Yes it could. There are bacteria which exist on Earth in conditions known to be the same as on Mars, with regard to temperature, atmosphere etc.
There is some debate as to what conditions are needed to produce life, and whether, given those conditions, life is inevitable, or just lucky to be there.

Answer 8

Of course yes, must exist other similar planet like us earth.

Answer 9

There are millions if not billions of other planets out there. To think ours is the only one with life on it would be absurd.

Answer 10

Yes it could - perhaps! Life on this planet is just chance so it is only chance elsewhere.

You have to look EVERYWHERE first before you say life is no where else. If I hide a marble in your bathroom you must look in your bathroom before you decide it is not in there!