is earth the only planet in the universe which has got life?

Answer 1

No. It's not even the only planet in our solar system which has got life.

NASA's Viking II probe found ameobas on Mars. They were very primitive, but still life.

In you take in to consideration the fact that the VERY NEXT PLANET to ours has life, and the sheer size of the universe, it's a folly to think that there isn't life elsewhere.

"The only sure sign of extra-terrestrial intelligence is that none of them have tried to contact us." - Calvin.

Answer 2

I have heard some where that there is another planet in the universe, may be on another Milky way or Galaxy, which is a mirror image of our planet Earth. Not even this, every living being on the Earth does have a mirror image on that planet. This mirror image is just like opposite pole of a magnet. A magnet cannot exist with just a single pole and hence any living being on the Earth cannot exist without a mirror image of its own on the other planet.

Answer 3

Either many planets in the universe have got life. If so, so much the better (ot the worse)
Or only our planet has got life. It is the more interesting case. Why? Because if the probability of having a planet with life is so low, billions of stars had to be created in order to make sure that at least one of them would have a planet swarming with living organisms.
In other terms, the universe have a function: ensure that life will appear at least once somwhere.

Answer 4

Based on the available evidence, scientists have been able to reconstruct detailed information about the planet's past. Earth is believed to have formed around 4.57 billion years ago out of the solar nebula, along with the Sun and the other planets. Initially molten, the outer layer of the planet cooled when water began accumulating in the atmosphere when the planet was about half its current radius, resulting in the solid crust. The moon formed soon afterwards. Outgassing and volcanic activity produced the primordial atmosphere; condensing water vapor, augmented by ice delivered by comets, produced the oceans.[4] The highly energetic chemistry is believed to have produced a self-replicating molecule around 4 billion years ago, and half a billion years later, the last common ancestor of all life lived.[5]

The development of photosynthesis allowed the sun's energy to be harvested directly; the resultant oxygen accumulated in the atmosphere and gave rise to the ozone layer. The incorporation of smaller cells within larger ones resulted in the development of complex cells called eukaryotes.[6] Cells within colonies became increasingly specialized, resulting in true multicellular organisms. Aided by the absorption of harmful ultraviolet radiation by the ozone layer, life colonized the surface of Earth.

Over hundreds of millions of years, continents formed and broke up as the surface of Earth continually reshaped itself. The continents have migrated across the surface of the Earth, occasionally combining to form a supercontinent. Roughly 750 million years ago (mya), the earliest known supercontinent Rodinia, began to break apart. The continents later recombined to form Pannotia, 600–540 mya, then finally Pangaea, which broke apart 180 mya.[7]

Since the 1960s, it has been hypothesized that severe glacial action between 750 and 580 mya, during the Neoproterozoic, covered much of the planet in a sheet of ice. This hypothesis has been termed "Snowball Earth", and is of particular interest because it preceded the Cambrian explosion, when multicellular lifeforms began to proliferate.[8]

Since the Cambrian explosion, about 535 mya, there were five mass extinctions.[9] The last occurred 65 mya, when a meteorite collision probably triggered the extinction of the (non-avian) dinosaurs and other large reptiles, but spared small animals such as mammals, which then resembled shrews. Over the past 65 million years, mammalian life has diversified, and several mya, a small African ape gained the ability to stand upright. This enabled tool use and encouraged communication that provided the nutrition and stimulation needed for a larger brain. The development of agriculture, and then civilization, allowed humans to influence the Earth in a short timespan as no other life form had, affecting both the nature and quantity of other life forms, and the global climate.

Answer 5

Earth is the only planet in the universe which is known to support life!

Answer 6

Since our knowledge of the other planets in the universe is limitted.
We can say may be in other planets there may be some living creature. But we have not yet proved.

Answer 7

yes of course.Only other planet which is considered to have life is Mars, but yet there is no evidence of life there.it is only assumed to have had life as there are evidences that there must have been water on that planet some time ago.

Answer 8

As far as we know.
That doesnt mean there isnt any, just that we dont know about it.
It's fair to assume that it's the only one in our solar system, but to say in the whole universe is a bit far fetch, as the universe is endless.

Answer 9

only God knows. It is not a question that should confuse us about seeking Him. Jesus said ' I am the way, the TRUTH, and the life' .. He is the master creator maker according to the bible and so He knows. Never let this kind of question get in the way of a decision about God.

Answer 10

I think it is altogether likely that there is life in other galaxies. Maybe it isn't human life, or maybe it is, but due to how slow our technology advances (yeah, right, that's an oxymoron...) it isn't possible to tell just yet. We may not find the answer out in our lifetime, but it's possible our children will.